“oat”
14 recipes vs 397Recipes with “oat” in the title: less egg (9.6% vs 40%).
“oat” (14)the rest (397)middle half of all
Eggrecipes with oat in the title 9.6% vs the rest 40%
Oatmeal Cookies Lab
Chewy or crisp: oats, butter, sugar and egg per 100 g of flour.
499 recipes from 121 sites, each reduced to grams and written as baker's percentages: grams of each ingredient per 100 g of flour, so a small recipe and a double batch line up. Below: the typical batch, how far recipes stray from it, and a page for every recipe with a link to the original.
Recipes
499
from 121 sites
Typical flour
190 g
about 1 1/2 cups
Oven
350°F
175°C · median of 444
Bake time
11 min
most 10 to 14 min
The median of all 499 recipes for each ingredient, scaled to 190 g of flour. No single recipe is exactly this: each line is the middle of its own distribution. “Most recipes” means the middle half, from the 25th to the 75th percentile.
| Ingredient | Grams |
|---|---|
| FlourThe scale for everything else | 190 gabout 1 1/2 cups |
| OatsMost recipes use 120 to 230 g | 160 g |
| FatMost recipes use 140 to 220 g | 175 gabout 3/4 cup |
| SugarMost recipes use 220 to 320 g | 255 gabout 1 1/4 cups |
| EggMost recipes use 55 to 100 g | 75 gabout 1 1/2 large eggs |
| LeaveningMost recipes use 4 to 7 g | 6 g |
| SaltMost recipes use 2 to 4 g | 2.5 g |
Bake350°F (175°C) for about 11 minutes.
Volumes are approximate: flour at 125 g a cup, sugar 200 g, butter or oil 225 g, a large egg 50 g.
Each dot is a recipe, placed by grams of the ingredient per 100 g of flour (100% would be as much as the flour). The shaded band is the middle half of recipes and the line is the median.
median 85% · most 64 to 122%
Oats absorb moisture and give chew; recipes with more oats than flour are hearty and thick, fewer make a cookie closer to chocolate chip.
range 30 to 250%
median 91% · most 74 to 116%
Butter controls spread and richness; melted butter gives a chewier, flatter cookie than creamed.
range 30 to 160%
median 135% · most 115 to 168%
Oatmeal cookies lean on brown sugar, whose molasses keeps them moist and chewy.
range 40 to 277%
median 40% · most 29 to 52%
Egg holds the oats together; an extra yolk makes a chewier cookie.
range 0 to 88% · 10% use none
median 2.9% · most 2.2 to 3.7%
Mostly baking soda, which spreads and browns the dough.
range 0 to 6.8% · 6% use none
median 1.4% · most 1 to 2.1%
Salt sharpens the oat and brown-sugar flavor.
range 0 to 4% · 13% use none
Measured by how far apart the 25th and 75th percentile recipes are. The widest gaps are where the choice of recipe matters most.
Recipes agree most on sugar and fat: sugar 115 to 168%, fat 74 to 116% for the middle half.
495 of the recipes come in 6 languages with enough of each to compare: English 411, French 28, German 19, Portuguese 16, Spanish 11, Dutch 10.
English recipes whose titles use a word, against the ones that do not. What recipe writers do when they pick the word, not proof that it makes the texture.
Recipes called “chewy” (38), “best” (16) or “soft” (14) use about the same amounts as the rest on every ingredient measured here.
Recipes with “oat” in the title: less egg (9.6% vs 40%).
“oat” (14)the rest (397)middle half of all
Eggrecipes with oat in the title 9.6% vs the rest 40%
Recipes with “pumpkin” in the title: less egg (14% vs 40%).
“pumpkin” (29)the rest (382)middle half of all
Eggrecipes with pumpkin in the title 14% vs the rest 40%
84 oatmeal cookie recipes have 50 or more reader ratings. A rating count says how many people rated a page, which follows its traffic more than its quality. Against the other 415, medians per 100 g of flour, compared within each language:
On no ingredient do the most-reviewed recipes differ from the rest by more than chance would explain.
50+ ratings (84)the rest (415)middle half of all
Oatsthe most-reviewed recipes 97% vs the rest 83%
Fatthe most-reviewed recipes 92% vs the rest 91%
Sugarthe most-reviewed recipes 137% vs the rest 135%
Eggthe most-reviewed recipes 40% vs the rest 40%
Leaveningthe most-reviewed recipes 3.2% vs the rest 2.8%
Saltthe most-reviewed recipes 1.7% vs the rest 1.3%
444 of 499 recipes state an oven temperature, and 74% of those bake at 350°F (175°C). The other 55 do not say.
480 recipes state a bake time. Taking the middle of any stated range (“55 to 65 minutes” counts as 60), the median is 11 minutes and the middle half bake 10 to 14 minutes.
The single most common pairing is 350°F for 10 to 12 minutes, with 127 of the 431 recipes that state both.
Nearest the median on every ingredient at once.
In 7 languages: English 411, French 28, German 19, Portuguese 16, Spanish 11, Dutch 10, Italian 4. Lines in other languages are read in their own units and words, and each recipe page links to the original. 121 sites in all. No site contributes more than 12 recipes.
Every ingredient line is converted to grams and grouped (butter and oil count as fat; white, brown and liquid sweeteners as sugar), then divided by the flour weight. That baker's percentage is the only comparison that holds across recipes of different sizes.
99% of the 5,712 ingredient lines got a weight. 25% of those weights were printed by the source; the rest were converted from cups and spoons with standard densities, so treat single recipes as close, not exact. Frosting, glaze, streusel and other toppings are listed on each recipe page but left out of the percentages.
A recipe outside the plausible range for any ingredient is left out rather than allowed to stretch every chart; it is usually a different dish with the same name or a misread line. Of the pages fetched, 472 were left out: 242 outside the plausible range on some ingredient (oats 136, fat 52, leavening 25, salt 13, sugar 9, egg 7), 155 with no flour, or none that could be weighed, 49 with a title that names a different dish, 9 over the 12-per-site cap, 8 duplicates of other pages, 5 made from a boxed mix, 3 with an ingredient in amounts that could not be weighed, and 1 too many lines without an amount.
Every recipe page links to the original, which is where the method is. Recipe Lab does not republish instructions or photos.