Name: Date Cake with Sour Cream Topping
Ingredients: 1-1/3 cups cake flour; 1 cup light brown sugar; 1 teaspoon baking soda; 1 teaspoon baking powder; 1 tablespoon unsalted butter; 1 cup chopped pecans; 1 cup chopped dates; 1 cup boiling water; 1 beaten egg; Topping:; 1 cup light brown sugar; 1/2 cup sour cream; 1 cup finely chopped dates

Why it works: Pecans and dates share more aroma than cooks usually use. They rank in the top 5% of all ingredient pairs, and cooks put them together in 88 recipes. Both carry coumarin, which smells sweet, hay. 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.

Pecans + datestop 5% of all pairs

Smell alikestrong

Cooked together88 recipes

Shared aroma: coumarin (sweet, hay).
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 + pecanstop 11% of all pairs

Smell alikemoderate

Cooked together2,416 recipes

Shared aroma: 2,3-pentanedione (butter, sweet).
Flour + buttertop 12% of all pairs

Smell alikelow

Cooked together124,287 recipes

Shared aroma: isobutyraldehyde (malty, green).

Flour and butter 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

Cake flour: Provides the starch and gluten structure that holds the cake together.
Baking soda: Reacts with acidic ingredients to produce gas that helps the cake rise.
Baking powder: Releases gas during baking to give the cake lift and a lighter crumb.
Dates: Add moisture and sweetness, and soften to a tender, chewy texture.
Egg: Binds the batter and adds structure as it sets in the oven.
Sour cream: Adds tang and creaminess to the topping as it cooks with the sugar.

The step that matters

Boil the topping for the full time on low heat. Sugar and sour cream thicken as water evaporates and the mixture concentrates. Boiling too briefly leaves a thin topping, while too high a heat can scorch the dairy and make it grainy or split.

Swap the dates

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

Vanillafits better
Raisinfits better
Coconutfits about as well
Datesthe original

Fit is the average pairing score against flour, sugar, butter, pecans, egg, cream. 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.

Ingredient	Portion assumed	kcal
Flour	1 cup (125g) all-purpose	455
Pecans	1 oz (28g / ~19 halves)	196
Butter	1 tbsp (14g)	102
Yogurt	170g plain Greek	100
Egg	1 large egg (50g)	78
Dates	1 date (24g) medjool	66
Sugar	1 tbsp (12.5g) granulated	49
Water	not in our table	0
Topping	not in our table	0

Date Cake with Sour Cream Topping