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Dessert

Pop Overs

Pop Overs are light, puffed cakes made from eggs, milk, butter, flour, sugar, and baking powder.

From an old cookbook · modernised transcription
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Why it works: Milk and butter 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 ↓

Pop Overs

Ingredients

Directions

The book gives no oven temperature. The 400°F (200°C) in the steps was added when the recipe was transcribed, as a starting point. The book gives no cooking times either; the times in the steps were added in transcription, so check for doneness rather than trusting the clock.

Prepare

  1. Preheat the oven to 400°F (200°C).

  2. Beat the egg whites until stiff and set aside.

Make and bake

  1. In a separate bowl, mix the egg yolks, sugar, milk, melted butter, flour, and baking powder until smooth.

  2. Gently fold in the beaten egg whites.

  3. Pour the batter into greased muffin tins and bake for 20-25 minutes until puffed and 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. Milk + buttertop 7% of all pairs
    Smell alikemoderate
    Cooked together81,283 recipes

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

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

    Shared aroma: isobutyraldehyde (malty, green).

  3. Milk + flourtop 14% of all pairs
    Smell alikelow
    Cooked together78,219 recipes

    Shared aroma: isobutyraldehyde (malty, green).

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

    Shared aroma: phenylacetaldehyde (hawthorne, honey).

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

Eggs
Whites beaten to stiffness trap air, which lifts the batter as it bakes; yolks add richness.
Flour
Provides the structure that holds the risen batter walls in place as they set.
Baking powder
Releases gas in the batter, helping it rise and puff in the oven.
Milk
Adds moisture and liquid so the flour hydrates and the batter can steam and expand.
Butter
Adds fat for flavour and a tender crumb, and helps the surface brown.

The step that matters

Gently fold in the beaten egg whites. Folding rather than stirring keeps the air trapped in the whites. That trapped air and steam drive the rise, so overmixing deflates the batter and leaves popovers flat.

“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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