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Dessert

Shrewsbury Jumbles

A sweet cake made with butter, powdered sugar, eggs, ammonia, flour, lemon flavor, topped with citron.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 7 ingredients
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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 ↓

Shrewsbury Jumbles

Oven, in the book's wordsA hot oven

Ingredients

Directions

The book says “a hot oven”. The 400°F (200°C) in the steps is the modern equivalent, not the book's own figure.

Make the dough

  1. Cream the butter and powdered sugar together.

  2. Beat in the eggs one at a time.

  3. Add the ammonia and lemon flavor, then mix in the flour.

Shape and bake

  1. Roll out the dough to about ½ inch thick and cut with a 2½‑inch round cutter.

  2. Crimp the edges of each cake with your fingers.

  3. Place a small piece of citron in the center of each cake.

  4. Bake in a hot oven at 400°F (200°C) until golden.

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

    Shared aroma: isobutyraldehyde (malty, green).

  2. Sugar + flourtop 15% of all pairs
    Smell alikemoderate
    Cooked together92,116 recipes

    Shared aroma: phenylacetaldehyde (hawthorne, honey).

  3. Egg + flourtop 15% of all pairs
    Smell alikelow
    Cooked together106,462 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  4. Butter + lemontop 16% of all pairs
    Smell alikemoderate
    Cooked together41,227 recipes

    Shared aroma: 3-hexenal (apple, fruity).

  5. Flour + lemontop 17% of all pairs
    Smell alikemoderate
    Cooked together30,404 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
Creamed with sugar to trap air and give the cookies a tender, rich texture.
Eggs
Bind the dough and add moisture and structure as they are beaten in.
Flour
Provides the structure that holds the shaped cakes together during baking.
Ammonia
Leavens the dough, causing it to rise and become lighter as it bakes.
Powdered sugar
Sweetens the dough and helps form a fine, creamy base when creamed with butter.

The step that matters

Bake in a hot oven until golden. Ammonia leavening works quickly, and a hot oven sets the shape and browns the surface. Pulling the cakes too early leaves them pale and soft, while overbaking makes them dry and hard.

Swap the lemon

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

  1. Raisinfits better
  2. Vanillafits better
  3. Figfits about as well
  4. Lemonthe original

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