Zucchini Bread Lab · Decision tree
Find your zucchini bread
Three questions sort all 243 recipes into 8 groups. Each question is about one of the ingredients recipes disagree on most, and splits the recipes in front of it at their own median, so each answer keeps about half of them. Every group ends with its median recipe in grams and the real recipes nearest it.
The questions
Question 1
More spice than most, or less?
Cinnamon, sometimes nutmeg, is most of the flavor.
All 243 recipes: median 1.2% of the flour weight, 3 g per 250 g of flour; middle half 0% to 2.1%; 31% use none.
Question 2
More zucchini than most, or less?
Grated zucchini is mostly water: more of it makes a moister, denser loaf that needs a longer bake.
All 243 recipes: median 88% of the flour weight, 220 g per 250 g of flour; middle half 66% to 113%.
Asked within each answer to question 1, split at the median of the recipes that gave it.
Question 3
More fat than most, or less?
Usually oil, which keeps the loaf soft for days.
All 243 recipes: median 52% of the flour weight, 130 g per 250 g of flour; middle half 39% to 64%.
Asked within each answer to question 2, split at the median of the recipes that gave it.
The key
Read left to right: pick an answer to question 1, then one of the answers beside it for question 2, and so on to a group. Each cell gives the answer, its bound in grams per 100 g of flour, and how many recipes give it.
| 1. Spice | 2. Zucchini | 3. Fat | Group |
|---|---|---|---|
| More1.2% or more125 | Moreover 88%63 | Moreover 58%32 | A32 |
| Less58% or less31 | B31 | ||
| Less88% or less62 | Moreover 52%32 | C32 | |
| Less52% or less30 | D30 | ||
| Little or noneunder 1.2%118 | Moreover 87%59 | Moreover 57%30 | E30 |
| Less57% or less29 | F29 | ||
| Less87% or less59 | Moreover 48%29 | G29 | |
| Less48% or less30 | H30 |
The 8 groups
Each median recipe is the median of every ingredient over the group's recipes, scaled to 250 g of flour, beside the typical loaf of all 243. Bold rows are the ingredients the questions asked about.
Group A · 32 recipes · 13% of all
More spice, more zucchini and more fat
Spice 1.2% or more, zucchini over 88% and fat over 58% of the flour weight.
| At 250 g flour | Group A | All |
|---|---|---|
| Flour | 250 g | 250 g |
| Zucchini | 270 g | 220 g |
| Sugar | 280 gabout 1 1/3 cups | 240 g |
| Fat | 180 gabout 3/4 cup | 130 g |
| Egg | 125 gabout 2 1/2 large eggs | 110 g |
| Spice | 5 g | 3 g |
| Leavening | 9 g | 8 g |
| Salt | 4.5 g | 3.5 g |
Bake350°F (175°C) for about 55 minutes, the medians of the 29 recipes here that state a temperature and the 31 that state a time.
Nearest the middle of group A
Closest to the group's median on every ingredient at once.
- Zucchini Bread · rasamalaysia.comspice 2.3% · zucchini 107% · fat 73%
- Zucchini Bread Recipe · preppykitchen.comspice 1.4% · zucchini 108% · fat 61%
- Gluten-Free Zucchini Bread · bettycrocker.comspice 1.5% · zucchini 142% · fat 83%
- Easy Zucchini Bread · thefirstyearblog.comspice 2.5% · zucchini 110% · fat 78%
- Chocolate Zucchini Bread · bakingamoment.comspice 1.4% · zucchini 122% · fat 61%
Group B · 31 recipes · 12% of all
More spice, more zucchini and less fat
Spice 1.2% or more, zucchini over 88% and fat 58% or less of the flour weight.
| At 250 g flour | Group B | All |
|---|---|---|
| Flour | 250 g | 250 g |
| Zucchini | 265 g | 220 g |
| Sugar | 220 gabout 1 cups | 240 g |
| Fat | 110 gabout 1/2 cup | 130 g |
| Egg | 100 gabout 2 large eggs | 110 g |
| Spice | 5 g | 3 g |
| Leavening | 8 g | 8 g |
| Salt | 3 g | 3.5 g |
Bake350°F (175°C) for about 55 minutes, the medians of the 27 recipes here that state a temperature and the 29 that state a time.
Nearest the middle of group B
Closest to the group's median on every ingredient at once.
- Zucchini Bread Recipe · lifeloveandsugar.comspice 2.3% · zucchini 105% · fat 51%
- Zucchini Bread · bromabakery.comspice 2.3% · zucchini 88% · fat 39%
- Chocolate Chip Zucchini Bread · acouplecooks.comspice 1.9% · zucchini 89% · fat 46%
- Zucchini Bread · acouplecooks.comspice 1.9% · zucchini 89% · fat 46%
- Cardamom Pistachio Zucchini Bread · bromabakery.comspice 1.4% · zucchini 88% · fat 39%
Group C · 32 recipes · 13% of all
More spice, less zucchini and more fat
Spice 1.2% or more, zucchini 88% or less and fat over 52% of the flour weight.
| At 250 g flour | Group C | All |
|---|---|---|
| Flour | 250 g | 250 g |
| Zucchini | 165 g | 220 g |
| Sugar | 265 gabout 1 1/3 cups | 240 g |
| Fat | 145 gabout 2/3 cup | 130 g |
| Egg | 100 gabout 2 large eggs | 110 g |
| Spice | 5 g | 3 g |
| Leavening | 7 g | 8 g |
| Salt | 4 g | 3.5 g |
Bake350°F (175°C) for about 55 minutes, the medians of the 30 recipes here that state a temperature and the 30 that state a time.
Nearest the middle of group C
Closest to the group's median on every ingredient at once.
- Zucchini Bread with Walnuts and Chocolate Chips - Baker by Nature · bakerbynature.comspice 1.7% · zucchini 66% · fat 58%
- Homemade Zucchini Bread · kirbiecravings.comspice 2.1% · zucchini 66% · fat 58%
- Zucchini Bread · kirbiecravings.comspice 2.1% · zucchini 66% · fat 58%
- Mom's Zucchini Bread · tastesbetterfromscratch.comspice 2.1% · zucchini 66% · fat 58%
- Zucchini Bread Recipe · livewellbakeoften.comspice 2.4% · zucchini 76% · fat 58%
Group D · 30 recipes · 12% of all
More spice, less zucchini and less fat
Spice 1.2% or more, zucchini 88% or less and fat 52% or less of the flour weight.
| At 250 g flour | Group D | All |
|---|---|---|
| Flour | 250 g | 250 g |
| Zucchini | 165 g | 220 g |
| Sugar | 210 gabout 1 cup | 240 g |
| Fat | 95 gabout 1/2 cup | 130 g |
| Egg | 100 gabout 2 large eggs | 110 g |
| Spice | 4.5 g | 3 g |
| Leavening | 9 g | 8 g |
| Salt | 3.5 g | 3.5 g |
Bake350°F (175°C) for about 55 minutes, the medians of the 27 recipes here that state a temperature and the 29 that state a time.
Nearest the middle of group D
Closest to the group's median on every ingredient at once.
- Whole Wheat Zucchini Bread with Freshly Milled Flour · farmhouseonboone.comspice 2% · zucchini 59% · fat 36%
- Zucchini Bread · sallysbakingaddiction.comspice 2.1% · zucchini 82% · fat 50%
- Healthy Zucchini Bread · chelseasmessyapron.comspice 1.5% · zucchini 70% · fat 41%
- Star Zucchini Bread · bettycrocker.comspice 1.6% · zucchini 66% · fat 39%
- Gluten-Free Zucchini Bread · tasteofhome.comspice 1.4% · zucchini 65% · fat 38%
Group E · 30 recipes · 12% of all
Little or no spice, more zucchini and more fat
Spice under 1.2%, zucchini over 87% and fat over 57% of the flour weight. 24 of the 30 use no spice.
| At 250 g flour | Group E | All |
|---|---|---|
| Flour | 250 g | 250 g |
| Zucchini | 310 g | 220 g |
| Sugar | 310 gabout 1 1/2 cups | 240 g |
| Fat | 190 gabout 3/4 cup | 130 g |
| Egg | 165 gabout 3 1/2 large eggs | 110 g |
| Spice | none | 3 g |
| Leavening | 10 g | 8 g |
| Salt | 4 g | 3.5 g |
Bake350°F (175°C) for about 56 minutes, the medians of the 29 recipes here that state a temperature and the 28 that state a time.
Nearest the middle of group E
Closest to the group's median on every ingredient at once.
- Double Chocolate Zucchini Bread with Pecans · foodnetwork.comspice 0% · zucchini 128% · fat 70%
- Chocolate Chip Zucchini Bread · foodnetwork.comspice 0% · zucchini 107% · fat 79%
- Easy Zucchini Bread · foodnetwork.comspice 0% · zucchini 107% · fat 82%
- Lemon Poppy Seed Zucchini Bread · lecremedelacrumb.comspice 0% · zucchini 110% · fat 59%
- Chocolate Zucchini Bread · handletheheat.comspice 0% · zucchini 148% · fat 87%
Group F · 29 recipes · 11% of all
Little or no spice, more zucchini and less fat
Spice under 1.2%, zucchini over 87% and fat 57% or less of the flour weight. 20 of the 29 use no spice.
| At 250 g flour | Group F | All |
|---|---|---|
| Flour | 250 g | 250 g |
| Zucchini | 300 g | 220 g |
| Sugar | 210 gabout 1 cup | 240 g |
| Fat | 105 gabout 1/2 cup | 130 g |
| Egg | 120 gabout 2 1/2 large eggs | 110 g |
| Spice | none | 3 g |
| Leavening | 9 g | 8 g |
| Salt | 3 g | 3.5 g |
Bake350°F (175°C) for about 50 minutes, the medians of the 25 recipes here that state a temperature and the 29 that state a time.
Nearest the middle of group F
Closest to the group's median on every ingredient at once.
- Lemon Poppy Seed Zucchini Bread · theviewfromgreatisland.comspice 0% · zucchini 99% · fat 44%
- Cinnamon Swirl Zucchini Bread · lecremedelacrumb.comspice 0.7% · zucchini 99% · fat 39%
- Chocolate Chip Zucchini Bread · butternutbakeryblog.comspice 0% · zucchini 102% · fat 43%
- Orange Glazed Zucchini Bread · theviewfromgreatisland.comspice 0.6% · zucchini 100% · fat 48%
- Chocolate Zucchini Bread · spendwithpennies.comspice 0% · zucchini 119% · fat 35%
Group G · 29 recipes · 11% of all
Little or no spice, less zucchini and more fat
Spice under 1.2%, zucchini 87% or less and fat over 48% of the flour weight. 16 of the 29 use no spice.
| At 250 g flour | Group G | All |
|---|---|---|
| Flour | 250 g | 250 g |
| Zucchini | 165 g | 220 g |
| Sugar | 265 gabout 1 1/3 cups | 240 g |
| Fat | 145 gabout 2/3 cup | 130 g |
| Egg | 105 gabout 2 large eggs | 110 g |
| Spice | none | 3 g |
| Leavening | 8 g | 8 g |
| Salt | 3.5 g | 3.5 g |
Bake350°F (175°C) for about 55 minutes, the medians of the 28 recipes here that state a temperature and the 29 that state a time.
Nearest the middle of group G
Closest to the group's median on every ingredient at once.
- Lemon Zucchini Bread · twopeasandtheirpod.comspice 0% · zucchini 66% · fat 58%
- Lemon Zucchini Bread · livewellbakeoften.comspice 0% · zucchini 70% · fat 58%
- Lemon Poppy Seed Zucchini Bread · houseofnasheats.comspice 0% · zucchini 75% · fat 52%
- Blueberry Zucchini Bread · tasteofhome.comspice 0% · zucchini 74% · fat 65%
- Pina Colada Zucchini Bread · tasteofhome.comspice 0% · zucchini 74% · fat 65%
Group H · 30 recipes · 12% of all
Little or no spice, less zucchini and less fat
Spice under 1.2%, zucchini 87% or less and fat 48% or less of the flour weight. 16 of the 30 use no spice.
| At 250 g flour | Group H | All |
|---|---|---|
| Flour | 250 g | 250 g |
| Zucchini | 155 g | 220 g |
| Sugar | 200 gabout 1 cup | 240 g |
| Fat | 90 gabout 1/3 cup | 130 g |
| Egg | 100 gabout 2 large eggs | 110 g |
| Spice | none | 3 g |
| Leavening | 8 g | 8 g |
| Salt | 3 g | 3.5 g |
Bake350°F (175°C) for about 53 minutes, the medians of the 29 recipes here that state a temperature and the 29 that state a time.
Nearest the middle of group H
Closest to the group's median on every ingredient at once.
- Gluten Free Lemon Zucchini Bread · butternutbakeryblog.comspice 0% · zucchini 51% · fat 30%
- Lemon Zucchini Bread · feelgoodfoodie.netspice 0% · zucchini 74% · fat 29%
- Chocolate Chip Zucchini Bread Recipe · shugarysweets.comspice 0.5% · zucchini 50% · fat 34%
- Glazed Lemon Poppy Seed Zucchini Bread · tasteandtellblog.comspice 0% · zucchini 50% · fat 44%
- Lemony Zucchini Bread · tasteofhome.comspice 0% · zucchini 50% · fat 44%
How the questions are chosen
Each ingredient is ranked by how much recipes disagree on it: the width of the middle half of recipes (25th to 75th percentile) divided by the median, less 4% for each place it sits down this lab's list of ingredients, so the ones that define the dish win near ties. For zucchini bread the order is spice (1.75), zucchini (0.54), fat (0.49), leavening (0.44), sugar (0.33) and egg (0.31), and the first 3 are asked. Salt is never asked about: recipes differ on it mostly by brand and taste.
Every split is at the median of the recipes in front of it, rounded to the percentage shown. Recipes exactly at the median go to whichever side leaves the two halves more even. No answer may keep fewer than 5 recipes; a group that could not be split further says so.
The recipes listed under each group are the 5 nearest its median on every ingredient at once, each scaled by how much recipes vary on it. Every recipe page links to the original for the method.