Name: Gem Cakes
Ingredients: one cup sugar; two tablespoons butter; four tablespoons grated chocolate; two tablespoons of boiling water; one-half cups of flour; one-half cup of water; two eggs; one heaping teaspoon royal baking powder; salt

Why it works: Butter and flour are a kitchen classic. They rank in the top 12% of all ingredient pairs, and cooks put them together in 124,287 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓

Gem Cakes

Ingredients

Directions

Combine sugar, butter, eggs, grated chocolate, boiling water, flour, baking powder, salt, and water in a bowl.
Bake the batter in gem pans.

Nutrition, whole recipe (rough)

839Calories

21 gProtein

27 gFat

125 gCarbs

Counts 6 of 7 ingredients. The other 1 aren't in our nutrition table and add nothing above, so the real totals are higher.

What these numbers assume: 6 portions

Ingredient	Portion assumed	kcal
Flour	1 cup (125g) all-purpose	455
Chocolate	1 oz (28g) semisweet	155
Butter	1 tbsp (14g)	102
Egg	1 large egg (50g)	78
Sugar	1 tbsp (12.5g) granulated	49
Salt	1 tsp (6g)	0
Water	not in our table	0

One typical portion per ingredient; the recipe's quantities are not counted. A rough guide only, not for medical or dietary planning.

By United Methodist Church (Grayville, Ill.). 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. See the original page.

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.

Butter + flourtop 12% of all pairs

Smell alikelow

Cooked together124,287 recipes

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

Smell alikemoderate

Cooked together15,404 recipes

Shared aroma: guaiacol (smoky, 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).
Butter + chocolatetop 16% of all pairs

Smell alikemoderate

Cooked together10,543 recipes

Shared aroma: delta-decalactone (sweet, creamy).

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

Flour: Provides the structure that holds the cakes together as they bake.
Eggs: Add structure and binding, helping the batter set as it bakes.
Baking powder: Releases gas during baking, making the cakes rise and become light.
Butter: Adds fat that tenderizes the crumb and contributes richness.
Grated chocolate: Adds chocolate flavour and colour to the batter.
Sugar: Sweetens the batter and helps browning during baking.

“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.