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Pocket Rolls

A yeast dough pocket roll made with mashed potatoes, eggs, flour, lard, sugar, and salt, baked until crisp.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 7 ingredients
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Why it works: Flour and sugar are a kitchen classic. They rank in the top 15% of all ingredient pairs, and cooks put them together in 92,116 recipes. Both carry phenylacetaldehyde, which smells hawthorne, honey. The science ↓

Pocket Rolls

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.

Make the dough

  1. Combine mashed potatoes, eggs, yeast, flour, lard, sugar, and salt in a large bowl.

  2. Mix until a dough forms and let it rise until doubled in size.

Shape and bake

  1. Roll out the dough and spread thickly with butter before folding.

  2. Let the rolls rise lightly again.

  3. Bake in a preheated oven at 400°F (200°C) until crisp and hot.

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 + sugartop 15% of all pairs
    Smell alikemoderate
    Cooked together92,116 recipes

    Shared aroma: phenylacetaldehyde (hawthorne, honey).

  2. Potato + flourtop 15% of all pairs
    Smell alikemoderate
    Cooked together5,355 recipes

    Shared aroma: isobutyraldehyde (malty, green).

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

    Shared aroma: isobutyraldehyde (malty, green).

  4. Egg + sugartop 21% of all pairs
    Smell alikemoderate
    Cooked together122,807 recipes

    Shared aroma: 2-nonenal (fatty, green).

  5. Potato + eggtop 29% of all pairs
    Smell alikemoderate
    Cooked together4,978 recipes

    Shared aroma: (e)-2-octenal (fatty, green).

Egg and flour barely smell alike, yet cooks put them together in 106,462 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

Mashed potatoes
Adds moisture and softness to the dough, keeping the rolls tender.
Eggs
Add structure and richness, helping the dough hold its shape.
Yeast
Produces gas as it ferments, making the dough rise and become light.
Flour
Forms the gluten network that gives the dough its structure.
Lard
Adds fat, which tenderizes the crumb and contributes to a rich texture.
Sugar
Feeds the yeast and adds sweetness and gentle browning.

The step that matters

Letting the dough rise until doubled. Yeast needs enough time to produce gas and build structure. Under-proofed dough bakes up dense, while over-proofed dough can collapse or lose its shape.

Swap the potato

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

  1. Arrowrootfits better
  2. Sweet potatofits better
  3. Shallotfits better
  4. Potatothe original

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