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Rye Gems

A quick rye roll made with egg, baking soda, cream of tartar, salt, and rye flour.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
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Why it works: Rye and flour match in chemistry and in kitchens. They rank in the top 8% of all ingredient pairs, and cooks put them together in 1,320 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓

Rye Gems

Oven, in the book's wordsA quick oven

Ingredients

Directions

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

Prepare

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

Make and bake

  1. In a bowl, mix the egg, baking soda, cream of tartar, salt, and rye flour until well combined.

  2. Pour the batter into hot roll pans.

  3. Bake until golden brown.

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. Rye + flourtop 8% of all pairs
    Smell alikestrong
    Cooked together1,320 recipes

    Shared aroma: isobutyraldehyde (malty, green).

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

    Shared aroma: isobutyraldehyde (malty, green).

  3. Cream + flourtop 20% of all pairs
    Smell alikemoderate
    Cooked together30,481 recipes

    Shared aroma: acetaldehyde (pungent, ethereal).

  4. Egg + creamtop 24% of all pairs
    Smell alikelow
    Cooked together42,166 recipes

    Shared aroma: acetic acid (sour, vinegar).

  5. Cream + ryetop 25% of all pairs
    Smell alikemoderate
    Cooked together150 recipes

    Shared aroma: acetic acid (sour, vinegar).

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

Egg
Binds the batter and adds structure as it sets in the oven.
Baking soda
Reacts with the acid in the batter to produce gas that helps the gems rise.
Cream of tartar
Provides acidity that activates the baking soda for lift.
Rye flour
Forms the main structure of the gems, with a denser crumb than wheat flour.

The step that matters

Pour the batter into hot roll pans. Batter poured into a preheated pan begins setting and rising right away, giving the gems an initial burst of lift and a crisp, browned surface. Cold pans would slow this and can leave the gems dense.

“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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