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Dessert

Rum Buns

Rum buns are sweet yeast rolls made with flour, yeast, milk, eggs, butter, sugar, salt, and optionally raisins, then baked and soaked in rum syrup.

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 ↓

Rum Buns

Oven, in the book's wordsA moderate oven

Ingredients

Directions

The book says “a moderate oven”. The 350°F in the steps is the modern equivalent, not the book's own figure.

Make the dough

  1. Sift the flour into a deep bowl and make a hole in the middle.

  2. Dissolve the yeast in lukewarm milk and pour the yeast mixture into the hole.

  3. Mix enough flour with the milk to form a thick batter.

  4. Cover the mixture and let it rise in a warm place until foaming.

  5. Add sugar and salt.

  6. Mix in the remaining flour.

  7. Knead in 6 eggs, one at a time.

  8. Knead in the butter.

  9. Knead in the remaining 6 eggs, one at a time.

  10. Add enough warm milk to make a thick batter that holds its shape when dropped from a spoon.

  11. Stir in sliced citron or raisins if desired.

Shape and bake

  1. Grease small molds with cold butter.

  2. Fill the molds half with the batter.

  3. Let the batter rise until one-third full.

  4. Bake in a moderate oven (350°F / 175°C) until a straw comes out clean.

Soak and serve

  1. Cool the cakes.

  2. Soak the cakes in a dish of rum syrup made by dissolving white sugar in cold water and flavoring with Jamaica rum.

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. Sugar + syruptop 6% of all pairs
    Smell alikestrong
    Cooked together5,842 recipes

    Shared aroma: ethanol (alcoholic, ethereal).

  3. Milk + buttertop 7% of all pairs
    Smell alikemoderate
    Cooked together81,283 recipes

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

  4. Flour + buttertop 12% of all pairs
    Smell alikelow
    Cooked together124,287 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  5. Milk + rumtop 12% of all pairs
    Smell alikemoderate
    Cooked together967 recipes

    Shared aroma: ethyl 2-methylbutyrate (fruity, apple).

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

All-purpose flour
Forms the gluten network that gives the buns their structure.
Compressed yeast
Produces gas during rising, leavening the dough so it becomes light.
Eggs
Add richness, structure and moisture to the enriched dough.
Unsalted butter
Adds fat that tenderizes the crumb and enriches the flavour.
Milk
Hydrates the flour and dissolves the yeast to form the batter.
Sugar
Feeds the yeast and adds sweetness and browning.

The step that matters

Rising until foaming and then until one-third full. Yeast needs time and warmth to produce gas; under-rising leaves dense buns, while over-filling the molds can cause the batter to spill or bake unevenly.

Swap the raisin

The recipe marks raisin as optional. How well each one fits the dish's main ingredients (flour, milk, sugar, egg, butter, syrup, rum):

  1. Vanillafits better
  2. Raisinthe original
  3. Figfits about as well
  4. Bananafits about as well

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