Case Study 1 — Maya's Jollof, the Notebook, and the Mother Who Doesn't Measure

What the chapter showed, and what came after

The chapter showed Maya on the Saturday she finished writing down her mother's jollof recipe — the recipe she had been chasing for two years, since her mother's first phone call about why the rice in Maya's first attempt did not have the bottom crust her mother's always had. The chapter ended with the recipe in the notebook, in ink, with her mother's note in Yoruba in the margin: the rice needs the heat. Do not interrupt the heat.

What the chapter did not show — what would not have fit, but is worth telling here — is what happened after. The recipe in the notebook is a moment. The two years that built it are a process. The story of the process is the actual case study, because the process is what any cook with a beloved recipe in their family can do, and the moment in the notebook is just the artifact at the end.

This case study is the long version. It is also Maya's recipe-design arc, the through-line of a character we have met across nearly forty chapters of the book. Read it as both the resolution of a story and as a method.

Year one: the failures and the variables

Maya's first attempt at her mother's jollof rice — the one in chapter one, the one that prompted the first call — was made from a cousin's text. The cousin's text had three lines. Rice. Tomato base. Cook. This is approximately how the recipe had been transmitted in Maya's family for as long as anyone could remember. You watched. You learned. You did. You did not write down. The notion of a measured jollof recipe was, in Maya's family, slightly absurd.

The first attempt produced a pot of rice that was edible but flavorless. The bottom of the pot had no caramel crust — the crust her mother called the prize, the crust that was, in her mother's house, fought over by the children on Sunday afternoons. The rice itself was tomato-tinted but pale; the texture was wet in some places and dry in others; the spice level was roughly correct but the flavor lacked the depth Maya remembered. She called her mother. Her mother laughed. Her mother said, come over. Watch me make it. Bring a notebook.

Maya did not, that first time, bring a notebook. She just watched. She returned home and tried again. The second pot was better in every respect except the bottom-of-the-pot crust, which she still could not produce. Her mother said the crust required heat at the right time, no stirring at the bottom stage, and the right pot. Her mother said no stirring at the bottom stage with the firmness of someone who has watched a child stir at the wrong moment and ruin a meal. Maya's mother does not write down recipes. Her mother transmits recipes through the oral tradition that has carried recipes across thousands of years. Maya — engineer, software developer, methodical — is the disruption to the oral tradition. Maya wants the recipe in writing.

By month six, Maya had identified four variables she did not understand:

1. Why does the rice need to be parboiled, specifically? (Her mother said: because the parboiled rice toasts without breaking.)
2. Why does her mother toast the rice before adding the tomato base? (Her mother said: because the toasted rice does not stick. And the flavor.)
3. Why does her mother add the stock in two stages instead of all at once? (Her mother said: because then the bottom can dry out. And the bottom is the prize.)
4. Why does the heat go from medium to low to barely-warm in a staircase, instead of just sitting at one temperature? (Her mother said: because each stage cooks a different part of the pot.)

Each of her mother's answers was, Maya realized eventually, scientifically exact. Parboiled rice has been pressure-steamed in the husk before milling, which gelatinizes the starches and re-hardens them in a tighter structure that resists breaking during further cooking (Chapter 9 on starch). Toasted rice has had its surface starches pre-cooked, reducing the amount of free starch that escapes into the cooking liquid, reducing stickiness (also Chapter 9). Adding stock in stages allows the bottom layer to dry out and contact the metal at high enough temperature to caramelize, which would not happen if the rice were submerged in liquid the entire cooking time (Chapter 10 on caramelization). The heat staircase corresponds to the different reactions running in different parts of the pot — Maillard and caramelization at the bottom, gentle starch gelatinization in the middle, slow steam at the top (Chapter 4, Chapter 8, Chapter 9, Chapter 10).

Her mother had been doing food science her whole life. Her mother had simply been calling it cooking.

Maya wrote down each of her mother's answers in plain language in her notebook. She wrote down the corresponding chapter and concept in the margin in pencil. She started running variations.

Year one: the variations

The variations were the engineer's instinct: change one thing at a time and see what happens. Maya cooked jollof rice once a week for thirty-seven weeks. She did not always cook a full pot — sometimes she cooked a half-recipe, to save time. She kept a notebook. The notebook had a column for each variable.

Some of what she varied:

• The rice. Parboiled (her mother's choice) vs. jasmine vs. basmati vs. plain long-grain. Result: parboiled was the clearest winner for the bottom-crust outcome and for the grains-staying-separate outcome. The other rices were not bad, but they were different dishes.
• The fat. Red palm oil (her mother's choice) vs. coconut oil vs. neutral vegetable oil vs. mixed. Result: red palm oil was the flavor backbone — the orange color, the slightly nutty smoky background, was specifically what made the dish taste like jollof. Substitutes worked but produced a jollof-shaped dish without the specific flavor of jollof. (This is the chapter's principle: some ingredients carry the cuisine.)
• The tomato base. Canned plum tomatoes vs. fresh tomatoes vs. red bell pepper added vs. tomato paste only. Result: a blend works best — the canned tomatoes provide the cooked-tomato umami and color; the fresh adds a brighter top-note; the red bell pepper adds sweetness and body without too much acid. The proportions of the blend Maya settled on were 50% canned, 30% fresh tomato, 20% red bell pepper, all blended and reduced to a thick paste before going in.
• The aromatics. Onion always; garlic always; ginger sometimes; bay leaf always; thyme sometimes; curry powder (a Nigerian specific style — different from Indian curry powder) yes; dried shrimp powder yes (her mother's signature, easy to miss in the video). Result: the curry powder + dried shrimp combination was the umami signature. Maya sourced a Nigerian curry powder her mother liked and ordered it online when she could not find it locally.
• The scotch bonnet. Whole and slit (removed at end) vs. minced vs. sliced rings. Result: whole and slit was her mother's choice and it produced a heat that was present but extractable — Maya could pull the peppers at any moment if the heat was getting away from her. Minced or sliced was harder to control; the heat could not be removed once it was in.
• The cooking vessel. A cast-iron Dutch oven vs. a stainless-steel pot vs. a non-stick pot. Result: cast-iron was the clear winner. The thermal mass and the heat retention produced the right bottom-of-pot caramelization. Stainless steel scorched in patches because hot spots developed. Non-stick simply did not produce the bottom crust at all — the surface was wrong for the chemistry.
• The heat staircase. High-medium-low (her mother's three stages) vs. constant medium vs. high then immediately low. Result: the staircase mattered. Constant medium produced uneven cooking; high-then-low produced a burnt bottom; the staircase, with timed transitions, produced the desired stratified outcome.

By the end of year one, Maya had a pot of jollof that was very close to her mother's. The bottom crust was correct most of the time. The flavor was correct. Her mother, when sent a photo, said good, which is, again, her mother's highest grade.

Year two: the recipe writing

Year two was the writing. This is the part of the story most readers do not think about, because it is not the dramatic part. The variations are the cooking. The writing is the harder thing.

Writing down a recipe well requires several things at once:

1. Deciding what to measure. Some things are obvious — rice mass, salt mass, oil mass. Some things are not — onion size (small? medium? large? in grams?), tomato ripeness (does it matter?), the exact stage at which the heat drops (when the surface looks how?). Maya had to decide which variables to fix and which to allow to vary.

2. Deciding how to express the measurements. Maya, the engineer, used baker's percentages — rice as 100%, everything else as a percentage of the rice. This let her scale the recipe trivially. But baker's percentages are intimidating to many home cooks. So her notebook included two versions: a percentage version for scaling and a 4-cup-of-rice version for cooking.

3. Deciding what to say in words and what to leave in numbers. Toast the rice for 4 minutes, stirring constantly, until each grain is matte is a sentence with both a measurement (4 minutes) and a sensory cue (matte). The sensory cue is what turns the recipe from a list of numbers into a recipe a cook can use. Maya put both in. Her mother would have only written the matte cue. The student version of Maya's recipe has both, because Maya is writing for cooks at multiple levels of experience.

4. Deciding how to handle the things her mother does without thinking. Her mother adds a small handful of dried shrimp powder around minute 12 of the simmer. Small handful is an unmeasured quantity. Maya measured one of her mother's small handfuls (1.5 teaspoons, 4 grams). She put the measurement in the recipe with the explanation or about a small handful, by feel. This is the recipe for both a careful cook with a scale and a confident cook with hands.

5. Deciding what to say about troubleshooting. What does the recipe say if the bottom crust does not form? If the rice is too wet? If the heat got away? Maya included a brief troubleshooting tree at the end of the recipe, modeled on the troubleshooting trees from this book.

6. Deciding what to say about variations. Vegetarian (mushroom and kombu stock instead of chicken). Spicier (more scotch bonnet, or scotch bonnet sliced thin). Smokier (a small amount of smoked paprika, or a couple of charred tomatoes in the base). Maya included a paragraph at the end — here are the variables you can adjust if you want to explore — modeled on the lever-pulling framework of this very chapter.

The recipe ended up being two pages in her notebook, in her engineer's careful handwriting. The recipe had: a header (her mother's name, the date Maya wrote it, the kitchen Maya was in); an ingredient list with metric and imperial measurements; baker's percentages for scaling; a method with steps numbered and timed; sensory cues woven into the steps; her mother's note in Yoruba in the margin; a short troubleshooting list; a short variations list; a citation line — learned from Mrs. Okonkwo (Lagos), as cooked at her daughter's apartment in Atlanta, [date].

Maya scanned the page and emailed it to her mother. Her mother printed it. Her mother put it in the cookbook drawer where her mother had no other recipes.

What the recipe gave Maya, beyond the rice

The recipe is the artifact. The two years are the gift.

Maya at the end of the two years can do something she could not do before: she can taste anyone's jollof rice and tell you, with reasonable accuracy, how the cook made it. She can identify the rice variety from the texture. She can identify the fat from the color and the aromatics. She can identify the cooking-vessel choice from the surface. She can tell you where the cook deviated from her mother's pattern and what each deviation does to the flavor.

She can also do something she could not do before: she can adapt the recipe to almost any constraint. A vegetarian guest? Mushroom-kombu stock. A guest with a wheat allergy? Already gluten-free, no change needed. A guest who keeps strict halal? Substitute halal-certified chicken stock or use vegetable stock. A guest with a heart condition who needs less sodium? Reduce the salt and increase the umami sources (more dried shrimp powder if pescatarian, more mushroom if vegetarian, more nutritional yeast if vegan) to maintain the flavor at lower salt.

She can also write down any dish she loves, by the same method. She has applied the method since to: her mother's egusi soup; her mother's pepper soup; her mother's suya spice blend; her grandmother's puff-puff (the Nigerian doughnut); a chicken adobo she learned from a Filipina college roommate (with permission); a dal her partner Aisha makes from her Punjabi-American mother's tradition (with permission); and one dish that is, plausibly, Maya's own — a slow-simmered black-eyed pea stew with smoked paprika and a finishing splash of malt vinegar that does not exist in any tradition Maya knows. That dish is in the notebook with a citation that simply says Maya, [date].

The notebook now has thirty-eight recipes in it. Most of them are recipes that exist in no other written form. Several of them — including her mother's jollof — Maya has been asked for by friends and family. She has photocopied pages from the notebook for her brother in California, her cousin in Lagos, two friends in Atlanta. The recipes have begun to spread.

This is what recipe design gives you, in the long run. Not the creative act of inventing dishes from nothing. The slow accumulation of a working theory of food, written down where you can find it, and shared with the people you cook for and from.

Aroon, when Maya called him

Maya does not personally know Aroon Sornprasit, the Toronto chef who threads through this book. But the author of this book introduced them, on a phone call, late in year two. Maya wanted to ask Aroon about how he handled the boundary between cooking from his grandmother's tradition and inventing dishes for his own restaurant. She had been thinking about it as she wrote the citation lines in her notebook.

Aroon, in his quiet way, answered her question for about forty minutes. The summary, which Maya wrote down at the end of the call:

The recipe belongs to where it came from. The technique is yours. When you make pad kra pao, you are making my mother's pad kra pao, and you should call it pad kra pao. When you make a dish that uses Thai techniques but is not from any Thai tradition, you should call it whatever it is. When you make jollof, you are making your mother's jollof, and you should call it jollof. When your mother's jollof becomes yours — when you have changed enough things that it is no longer hers — you should still call it jollof, because the dish is still from where it came. But you should write down whose recipe it began as.

Maya wrote this down. She updated her notebook's citation line for her own black-eyed pea stew, which had been Maya, [date]. The new line: Maya — inspired by Sunday red beans (Louisiana, where I have cooked but do not belong) and her aunt's egusi soup (Lagos, where she does belong). New dish; not from any single tradition.

The citation became another piece of the recipe.

Analyze this

1. The two-year arc Maya undertook is, by most measures of efficiency, a slow way to learn to make a dish. (a) What did the slow path give Maya that a printed-from-the-internet recipe would not have? (b) Are there parts of the process that could be compressed without losing the value? (c) Is there a recipe in your own life worth the two-year process?

2. Maya's mother does not write down recipes; Maya does. The relationship between oral tradition and written transmission is fraught — written recipes can be more accessible to outsiders, but they can also flatten the living nature of a tradition. (a) What is gained when Maya writes the recipe down? (b) What is lost? (c) Is there a way to write down a recipe that preserves more of what is alive in the oral version?

3. Aroon's framework — the recipe belongs to where it came from; the technique is yours — is a working ethic for a chef. Apply it as a thought experiment: a Western chef writes a cookbook of "Japanese-inspired" dishes that are not from any specific Japanese tradition. (a) What would the Aroon framework say? (b) Is the framework adequate for the question of cookbook authorship more broadly? (c) Where are the cases where the framework breaks down?

4. Maya identified specific scientific principles behind each of her mother's choices (the parboiled rice, the toast, the staged stock additions, the heat staircase). She had to do the science work because her mother had not articulated the principles. Pat Hammond's classroom assignment asks students to justify each ingredient choice with chemistry. (a) What does this kind of justification work give the cook? (b) What does it not give? (c) When does it become a hindrance — when does the cook get too attached to the principle and lose the cooking?

5. Maya now has thirty-eight recipes in her notebook. Imagine the notebook fifty years from now, when Maya is in her eighties and has been cooking and writing recipes for half a century. (a) Whose recipes will be in the notebook? Maya's mother's, certainly; her own; some friends' family recipes (with permission). What about her partner Aisha's? Their hypothetical children's? (b) What does this kind of personal-cookbook practice give a family — and what is the loss when no one in a family does this work? (c) Is there a way to do this for your own family that respects everyone's choices about what to record and what to leave oral?