Name: How We Cook in Tennessee
Ingredients: three-quarters pound sugar; quarter pound flour; one teaspoon of cream tartar; four cups; a cupful of flour five times; a cupful of sugar; a saltspoonful of cream of tartar; a pinch of salt to the whites; six eggs; salt

Why it works: Sugar and cream are a kitchen classic. They rank in the top 9% of all ingredient pairs, and cooks put them together in 43,450 recipes. Both carry 2,3-butanedione, which smells butter, sweet. 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.

Sugar + creamtop 9% of all pairs

Smell alikemoderate

Cooked together43,450 recipes

Shared aroma: 2,3-butanedione (butter, sweet).
Sugar + flourtop 15% of all pairs

Smell alikemoderate

Cooked together92,116 recipes

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

Smell alikelow

Cooked together106,462 recipes

Shared aroma: isobutyraldehyde (malty, green).
Flour + creamtop 20% of all pairs

Smell alikemoderate

Cooked together30,481 recipes

Shared aroma: acetaldehyde (pungent, ethereal).
Sugar + eggtop 21% of all pairs

Smell alikemoderate

Cooked together122,807 recipes

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

Flour and egg barely smell alike, yet cooks put them together in 106,462 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: Whipped whites trap air in a foam that gives the cake its light, airy structure.
Sugar: Adds sweetness and helps stabilise the beaten egg white foam.
Flour: Sets the cake's structure as it bakes around the trapped air.
Cream of tartar: Adds acidity that stabilises the beaten egg whites so the foam holds.

The step that matters

Stir lightly once the whites are beaten. Beaten egg whites hold air in a fragile foam. Stirring hard after the sugar and flour are added knocks out that air, so the cake bakes flat and dense. Stir gently and pour the batter straight into the pan.

“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.

Ingredient	Portion assumed	kcal
Flour	1 cup (125g) all-purpose	455
Egg	1 large egg (50g)	78
Cream	1 tbsp (15ml) heavy	51
Sugar	1 tbsp (12.5g) granulated	49
Salt	1 tsp (6g)	0

How We Cook in Tennessee