Name: Excellent Sponge Cake
Ingredients: 3 eggs; 1 cup sugar; 1 cup flour; 2 teaspoons baking powder; 2 tablespoons milk

Why it works: Flour and milk are a kitchen classic. They rank in the top 14% of all ingredient pairs, and cooks put them together in 78,219 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓

Excellent Sponge Cake

Oven, in the book's wordsA moderate oven

Ingredients

Directions

The book says “a moderate oven”. The 350°F (175°C) in the steps is the modern equivalent, not the book's own figure.

Prepare

Preheat the oven to 350°F (175°C).

Make the batter

In a bowl, beat the eggs until frothy.
Gradually add the sugar, continuing to beat until well combined.
Sift together the flour and baking powder, then fold into the egg mixture.
Gently stir in the milk until just combined.
Pour the batter into a greased cake pan.

Bake

Bake for 25-30 minutes or until a toothpick comes out clean.

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 + milktop 14% of all pairs

Smell alikelow

Cooked together78,219 recipes

Shared aroma: isobutyraldehyde (malty, green).
Sugar + flourtop 15% of all pairs

Smell alikemoderate

Cooked together92,116 recipes

Shared aroma: phenylacetaldehyde (hawthorne, honey).
Egg + flourtop 15% of all pairs

Smell alikelow

Cooked together106,462 recipes

Shared aroma: isobutyraldehyde (malty, green).
Egg + milktop 18% of all pairs

Smell alikemoderate

Cooked together88,785 recipes

Shared aroma: 2-nonenal (fatty, green).
Sugar + milktop 18% of all pairs

Smell alikelow

Cooked together77,875 recipes

Shared aroma: 2-nonenal (fatty, green).

Flour and milk barely smell alike, yet cooks put them together in 78,219 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: Beaten to trap air, giving the cake structure and a light, airy crumb.
Sugar: Adds sweetness and, beaten with the eggs, helps stabilise the foam and tenderise the crumb.
Flour: Forms the gluten network and sets the cake's structure as it bakes.
Baking powder: Releases gas when heated, making the batter rise in the oven.
Milk: Adds moisture and loosens the batter so it bakes evenly.

The step that matters

Fold the flour gently and stir the milk in just until combined. Overmixing once flour is added develops gluten, which can make the cake tough and dense. Folding keeps the air from the beaten eggs intact, so the cake stays light.

“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.

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Excellent Sponge Cake