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Dessert

Molasses Layer Cake

A moist cake made with molasses, sugar, baking soda, flour, butter, eggs, and raisins, layered with a raisin filling.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 11 ingredients
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Why it works: Flour and raisin match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 9,075 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓

Molasses Layer Cake

Ingredients

Directions

The book gives no oven temperature. The 350°F (175°C) in the steps was added when the recipe was transcribed, as a starting point.

Prepare

  1. Preheat the oven to 350°F (175°C).

Make the cake batter

  1. In a bowl, mix sugar, molasses, and baking soda dissolved in warm water.

  2. Add the egg and butter, then stir in the flour until combined.

Make the filling

  1. For the filling, cook chopped raisins with sugar, egg, and milk until thick.

Bake and serve

  1. Layer the cake with the filling and bake until done.

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.

  1. Flour + raisintop 1% of all pairs
    Smell alikestrong
    Cooked together9,075 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  2. Butter + milktop 7% of all pairs
    Smell alikemoderate
    Cooked together81,283 recipes

    Shared aroma: (z)-4-heptenal (biscuit, cream).

  3. Sugar + molassestop 11% of all pairs
    Smell alikemoderate
    Cooked together9,225 recipes

    Shared aroma: ethanol (alcoholic, ethereal).

  4. Butter + flourtop 12% of all pairs
    Smell alikelow
    Cooked together124,287 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  5. Molasses + raisintop 12% of all pairs
    Smell alikelow
    Cooked together3,577 recipes

    Shared aroma: ethanol (alcoholic, ethereal).

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

Molasses
Adds dark color, moisture and a deep, slightly bitter sweetness to the cake.
Baking soda
Reacts with the molasses acid to produce gas, helping the cake rise and lighten.
Egg
Binds the batter and sets during baking to give the cake structure.
Flour
Forms the gluten and starch framework that gives the cake its structure.
Butter
Adds fat for tenderness and richness in the crumb.
Raisins
Add chewy texture and concentrated sweetness to the filling.

The step that matters

Cook the filling until thick. The egg and sugar mixture thickens as the egg proteins set on gentle heat. Undercooking leaves it runny, while overheating can curdle the egg and make it grainy.

Swap the raisin

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

  1. Raisinthe original
  2. Vanillafits about as well
  3. Figfits less well
  4. Peachfits less well

Fit is the average pairing score against sugar, molasses, egg, butter, flour, milk. 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.

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