“banana”
10 recipes vs 158Recipes with “banana” in the title: less dairy (21% vs 65%).
“banana” (10)the rest (158)middle half of all
Dairyrecipes with banana in the title 21% vs the rest 65%
Blueberry Muffins Lab
Tall-domed or tender: berries, sugar, fat and dairy per 100 g of flour.
272 recipes from 119 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
272
from 119 sites
Typical flour
250 g
about 2 cups
Oven
375°F
190°C · median of 242
Bake time
22 min
most 18 to 25 min
The median of all 272 recipes for each ingredient, scaled to 250 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 | 250 gabout 2 cups |
| BlueberriesMost recipes use 150 to 250 g | 200 gabout 1 1/3 cups |
| SugarMost recipes use 135 to 200 g | 170 gabout 3/4 cup |
| FatMost recipes use 75 to 120 g | 100 gabout 1/2 cup |
| EggMost recipes use 65 to 100 g | 85 gabout 1 1/2 large eggs |
| DairyMost recipes use 120 to 230 g | 165 gabout 2/3 cup |
| LeaveningMost recipes use 8 to 13 g | 10 g |
| SaltMost recipes use 0.5 to 3 g | 2 g |
Bake375°F (190°C) for about 22 minutes.
Volumes are approximate: flour at 125 g a cup, sugar 200 g, butter or oil 225 g, milk and other liquids 240 g, blueberries 150 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 80% · most 60 to 100%
More berries means more moisture and a heavier muffin; tossing them in flour keeps them from sinking.
range 29 to 178%
median 68% · most 54 to 80%
Sugar keeps the crumb tender and moist; bakery-style muffins sit at the top of the range.
range 23 to 160%
median 40% · most 30 to 47%
Oil gives a softer muffin that keeps; butter gives more flavor and a slightly drier crumb.
range 7.6 to 100%
median 33% · most 26 to 40%
Eggs set the crumb and help the dome hold its shape.
range 0 to 107% · 6% use none
median 65% · most 48 to 92%
Milk, buttermilk, yogurt or sour cream thin the batter; the acidic ones give a more tender crumb.
range 0 to 217% · 4% use none
median 4.2% · most 3.4 to 5.2%
Muffins carry more leavening than a cake, which, with a hot oven start, pushes up the dome.
range 1.5 to 11%
median 0.8% · most 0.2 to 1.2%
Salt balances the sugar and the tart berries.
range 0 to 3.2% · 19% 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 leavening: sugar 54 to 80%, leavening 3.4 to 5.2% for the middle half.
260 of the recipes come in 4 languages with enough of each to compare: English 168, French 46, German 35, Italian 11.
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 “best” (14) or “easy” (10) use about the same amounts as the rest on every ingredient measured here.
Recipes with “banana” in the title: less dairy (21% vs 65%).
“banana” (10)the rest (158)middle half of all
Dairyrecipes with banana in the title 21% vs the rest 65%
65 blueberry muffin 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 207, 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 (65)the rest (207)middle half of all
Blueberriesthe most-reviewed recipes 89% vs the rest 79%
Sugarthe most-reviewed recipes 69% vs the rest 66%
Fatthe most-reviewed recipes 44% vs the rest 40%
Eggthe most-reviewed recipes 37% vs the rest 33%
Dairythe most-reviewed recipes 56% vs the rest 68%
Leaveningthe most-reviewed recipes 4.1% vs the rest 4.2%
Saltthe most-reviewed recipes 0.8% vs the rest 0.8%
242 of 272 recipes state an oven temperature, and 33% of those bake at 350°F (175°C). The middle half bake at 350 to 400°F. The other 30 do not say.
264 recipes state a bake time. Taking the middle of any stated range (“55 to 65 minutes” counts as 60), the median is 22 minutes and the middle half bake 18 to 25 minutes.
The single most common pairing is 350°F for 20 to 25 minutes, with 34 of the 240 recipes that state both.
Nearest the median on every ingredient at once.
In 7 languages: English 168, French 46, German 35, Italian 11, Portuguese 5, Dutch 4, Spanish 3. Lines in other languages are read in their own units and words, and each recipe page links to the original. 119 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.
97% of the 2,942 ingredient lines got a weight. 29% 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, 150 were left out: 74 outside the plausible range on some ingredient (blueberries 34, fat 17, sugar 12, leavening 7, dairy 2, salt 1, egg 1), 29 duplicates of other pages, 21 with no flour, or none that could be weighed, 9 with a title that names a different dish, 7 with an ingredient in amounts that could not be weighed, 5 over the 12-per-site cap, 3 made from a boxed mix, and 2 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.