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Dessert

Washington Cake

A light cake flavored with lemon, baked with butter and sugar, filled with apple sauce or jelly, and dusted with powdered sugar.

From an old cookbook · modernised transcription
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Why it works: Butter and milk are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓

Washington Cake

Oven, in the book's wordsA hot oven

Ingredients

Directions

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

Make the batter

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

  2. In a bowl, cream together the sugar and butter.

  3. Add the egg, sweet milk, baking soda, cream of tartar, and lemon flavoring; mix well.

  4. Gradually add the flour and stir until combined.

  5. Divide the batter between two round cake pans.

Bake and assemble

  1. Bake until golden brown and a toothpick comes out clean.

  2. Once cooled, spread apple sauce or jelly on one cake layer.

  3. Place the second cake layer on top and dust with powdered sugar.

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

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

  2. Butter + creamtop 8% of all pairs
    Smell alikemoderate
    Cooked together41,516 recipes

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

  3. Sugar + creamtop 9% of all pairs
    Smell alikemoderate
    Cooked together43,450 recipes

    Shared aroma: 2,3-butanedione (butter, sweet).

  4. Milk + appletop 11% of all pairs
    Smell alikemoderate
    Cooked together4,104 recipes

    Shared aroma: 4-heptenal (creamy, biscuit).

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

    Shared aroma: isobutyraldehyde (malty, green).

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

Butter
Creams with the sugar to add fat and tenderness to the crumb.
Egg
Binds the batter and adds structure and moisture as it sets in the oven.
Flour
Forms the main structure of the cake as its proteins set during baking.
Baking soda
Reacts with the cream of tartar and acid in the batter to produce lift.
Cream of tartar
Acts with the baking soda to help the cake rise and gives a slightly tangy note.
Sugar
Sweetens the cake and helps it brown and stay moist.

The step that matters

Baking until a toothpick comes out clean. Underbaked cake stays wet and can sink as it cools, while overbaking dries the crumb. A clean toothpick shows the centre has set and the structure is firm enough to hold the filling.

Swap the apple

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

  1. Vanillafits better
  2. Raisinfits better
  3. Figfits better
  4. Applethe original

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