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Dessert

Boston Cream Puffs

A pastry made from a water, butter, flour, and egg dough, baked into puffs and filled with whipped or pastry cream.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 4 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 ↓

Boston Cream Puffs

Ingredients

Directions

Make the paste

  1. Bring the water to a boil with the butter.

  2. Add the flour all at once and stir over heat until it forms a stiff, smooth paste, about 5-6 minutes.

  3. Remove from heat and let cool for a few minutes.

  4. Beat in the eggs one at a time.

Bake and fill

  1. Drop small teaspoonfuls of the paste onto slightly greased baking sheets, leaving 2 inches of space between them.

  2. Bake for about 25 minutes without opening the oven door for the first 15 minutes.

  3. Fill with whipped cream or pastry cream after baking.

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. Flour + eggtop 15% of all pairs
    Smell alikelow
    Cooked together106,462 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  3. Butter + eggtop 17% of all pairs
    Smell alikemoderate
    Cooked together118,967 recipes

    Shared aroma: decanal (soap, orange peel).

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
Forms the starch structure of the paste that sets and holds the puffs' hollow shape.
Eggs
Add structure and moisture, and their water turns to steam that helps the puffs rise.
Butter
Adds fat for tenderness and richness in the paste.
Water
Creates steam during baking that lifts the paste into hollow puffs.

The step that matters

Leave the oven door closed for the first 15 minutes. Opening the oven releases the steam and drops the temperature before the paste sets, so the puffs can collapse instead of rising fully.

“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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