Name: Cert Snell Cookies
Ingredients: 2 cups granulated sugar; 1 cup butter; 3 eggs, well beaten; flour, enough to make a stiff dough; sugar, for sprinkling; raisins, for topping; 1 teaspoon cream of tartar (optional); ½ teaspoon baking soda (optional)

Why it works: Flour and raisin match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 9,075 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓

Cert Snell Cookies

Oven, in the book's wordsA hot oven

Ingredients

Directions

The book says “a hot oven”. The 400°F (200°C) in the steps is the modern equivalent, not the book's own figure.

Make the dough

In a bowl, mix together the granulated sugar and butter until well combined.
Stir in the beaten eggs and enough flour to form a stiff dough.
Roll out the dough on a floured surface until thin.

Shape and bake

Cut the dough into round shapes and sprinkle with sugar.
Place a raisin in the center of each cookie.
Bake in a hot oven at 400°F (200°C) until light brown.

Recipe from a historical cookbook (Internet Archive).

Transcribed from a scanned cookbook and modernised for today's kitchens. Where the book gave no heat or time, or said "a moderate oven", the temperatures and times here may be modern equivalents rather than the book's own figures.

Explore the science

The flavor team

The pairs that carry this dish. Each one is judged two ways: how much their aromas overlap, and how often cooks already put them together.

Flour + raisintop 1% of all pairs

Smell alikestrong

Cooked together9,075 recipes

Shared aroma: isobutyraldehyde (malty, green).
Butter + creamtop 8% of all pairs

Smell alikemoderate

Cooked together41,516 recipes

Shared aroma: delta-dodecalactone (sweet, creamy).
Sugar + creamtop 9% of all pairs

Smell alikemoderate

Cooked together43,450 recipes

Shared aroma: 2,3-butanedione (butter, sweet).
Butter + flourtop 12% of all pairs

Smell alikelow

Cooked together124,287 recipes

Shared aroma: isobutyraldehyde (malty, green).
Sugar + raisintop 13% of all pairs

Smell alikemoderate

Cooked together12,481 recipes

Shared aroma: beta-damascenone (apple, rose).

Butter and flour barely smell alike, yet cooks put them together in 124,287 recipes: they work on texture and structure more than aroma.

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

What each ingredient does

Butter: Adds fat and richness, helping the cookies stay tender and spread slightly.
Eggs: Bind the dough and add structure and moisture to the cookies.
Flour: Provides the structure that holds the stiff dough and shaped cookies together.
Granulated sugar: Sweetens the cookies and helps them brown during baking.