Name: Marshmallow Cake
Ingredients: 4 eggs; 2 cups sugar; 1 cup butter, softened; 1 cup sweet milk; 2 ½ cups flour; 2 teaspoons baking powder; vanilla flavoring to taste; 1 cup granulated sugar (for filling); 1 cup water (for filling); butter the size of an egg (for filling); ½ pound marshmallows, melted (for filling); 1 cup chopped nuts (for filling); 1 egg white, beaten to stiff froth (for filling)

Why it works: Milk and vanilla are a kitchen classic. They rank in the top 5% of all ingredient pairs, and cooks put them together in 19,187 recipes. Both carry ethyl caproate, which smells fruity, apple peel. The science ↓

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.

Milk + vanillatop 5% of all pairs

Smell alikemoderate

Cooked together19,187 recipes

Shared aroma: ethyl caproate (fruity, apple peel).
Butter + milktop 7% of all pairs

Smell alikemoderate

Cooked together81,283 recipes

Shared aroma: (z)-4-heptenal (biscuit, cream).
Vanilla + nutstop 8% of all pairs

Smell alikemoderate

Cooked together638 recipes

Shared aroma: alpha-pinene (pine, turpentine).
Sugar + vanillatop 8% of all pairs

Smell alikelow

Cooked together35,032 recipes

Shared aroma: beta-damascenone (apple, rose).
Butter + flourtop 12% of all pairs

Smell alikelow

Cooked together124,287 recipes

Shared aroma: isobutyraldehyde (malty, green).

Sugar and vanilla barely smell alike, yet cooks put them together in 35,032 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

Eggs: Bind the batter and add structure and richness as the cake bakes and sets.
Flour: Forms the cake's structure as its proteins and starches set in the oven.
Butter: Creaming with sugar traps air and gives the cake a tender, rich crumb.
Baking powder: Releases gas in the batter, causing the cake to rise in the oven.
Sugar: Adds sweetness, softens the crumb, and helps the cake brown.
Egg white: Beaten to stiff froth, it lightens the filling with trapped air.

The step that matters

Creaming the butter and sugar until light and fluffy. Beating sugar into softened butter traps tiny air pockets that expand in the oven. Under-creaming gives a dense, heavy cake, so the mixture should look pale and fluffy before the other ingredients go in.

Swap the nuts

How well each one fits the dish's main ingredients (egg, sugar, butter, milk, flour, vanilla):

Almondfits better
Chestnutfits better
Hazelnutfits better
Nutsthe original

Fit is the average pairing score against egg, sugar, butter, milk, flour, vanilla. Candidates are from the same food group and used in at least 100 recipes.

“What each ingredient does” and “The step that matters” were written by Claude from this recipe’s own method and reviewed in samples by CompKitchen.

Marshmallow Cake