Crepes Lab338 recipes

Crepes Lab

Three overlapping styles in 338 crepe recipes

Leave the recipe names aside and group the 338 recipes by their 5 ingredient ratios alone, so that recipes built alike land together. Each group is named only by the numbers: the ingredients where its recipes sit furthest from the middle of all 338.

The data splits best into three groups, but they overlap: a silhouette of 0.24, on a scale where 0 is no separation and 1 is complete. Read them as tendencies within one broad spread rather than separate kinds of crepe.

The recipes on one map

Every recipe, placed on the two directions along which the ratios vary most (a principal component projection). Close dots are recipes built alike. The lettered rings mark the middle of each group.

ABC
Across →
More egg, butter and liquid to the right; 30% of the variation.
Up ↑
More sugar, less liquid upward; 21% of the variation.

The three groups

ALess egg and butter

186 recipes · 55% of all 338

Where it differs from all recipes

  • Eggmedian 67% vs 80% for all

    average rank: 36th percentile of all recipes

  • Buttermedian 9.1% vs 16% for all

    average rank: 37th percentile of all recipes · none in 36% (all recipes 23%)

  • Liquidmedian 206% vs 241% for all

    average rank: 41st percentile of all recipes

Its median recipe, at 125 g flour

Median recipe of group A in grams, against the median of all recipes
IngredientGroup AAll
Liquid260 g300 g
Egg85 g100 g
Butter11 g20 g
Sugarnone5 g
Saltnone0.5 g

Each line is the group's median for that ingredient, scaled to 125 g of flour.

Closest to the middle of the group

BMore egg and butter

95 recipes · 28% of all 338

Where it differs from all recipes

  • Eggmedian 100% vs 80% for all

    average rank: 71st percentile of all recipes

  • Buttermedian 28% vs 16% for all

    average rank: 70th percentile of all recipes · none in 9% (all recipes 23%)

  • Sugarmedian 20% vs 4% for all

    average rank: 69th percentile of all recipes · none in 20% (all recipes 45%)

Its median recipe, at 125 g flour

Median recipe of group B in grams, against the median of all recipes
IngredientGroup BAll
Liquid320 g300 g
Egg125 g100 g
Butter36 g20 g
Sugar25 g5 g
Salt0.5 g0.5 g

Each line is the group's median for that ingredient, scaled to 125 g of flour.

Closest to the middle of the group

CWith salt

57 recipes · 17% of all 338

Where it differs from all recipes

  • Saltmedian 1.7% vs 0.2% for all

    average rank: 91st percentile of all recipes · none in 0% (all recipes 37%)

  • Eggmedian 80% vs 80% for all

    average rank: 61st percentile of all recipes

  • Buttermedian 23% vs 16% for all

    average rank: 60th percentile of all recipes · none in 7% (all recipes 23%)

Its median recipe, at 125 g flour

Median recipe of group C in grams, against the median of all recipes
IngredientGroup CAll
Liquid325 g300 g
Egg100 g100 g
Butter28 g20 g
Sugarnone5 g
Salt2 g0.5 g

Each line is the group's median for that ingredient, scaled to 125 g of flour.

Closest to the middle of the group

How the groups are found

Each ratio is converted to a z-score (how many standard deviations a recipe sits from the mean), capped at 3 so one extreme recipe cannot claim a group, and k-means sorts the recipes into k groups, trying k from 2 to 4. Each k runs from 16 fixed starting points and keeps the tightest result, so the page is the same on every build. No group may hold fewer than 34 recipes.

The number of groups is the one with the best silhouette, which compares how close each recipe is to its own group with how close it is to the next one. By number of groups: 2 groups 0.23 · 3 groups 0.24 · 4 groups 0.22. At 0.25 or more the page calls the groups separate; from 0.18 to 0.25, overlapping; under 0.18, no clear styles.

A group's name lists the one to three ingredients where its recipes rank furthest from the middle of all 338, on average. “More” and “less” are relative to the whole dataset, and the names say nothing about texture or taste, which the ratios alone do not show. The median recipe of a group is, like the typical recipe on the overview, the middle of each ingredient separately, not one real recipe. The recipes listed under each group are the ones nearest its center, at most two from any one site.