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Dessert

Marshmallow Wafers

A sweet wafer made by baking a marshmallow and pecan mixture over saltine crackers.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 7 ingredients
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Why it works: Sugar and vanilla are a kitchen classic. They rank in the top 8% of all ingredient pairs, and cooks put them together in 35,032 recipes. Both carry beta-damascenone, which smells apple, rose. The science ↓

Marshmallow Wafers

Oven, in the book's wordsA slow oven

Ingredients

Directions

The book says “a slow oven”. The 300°F (150°C) in the steps is the modern equivalent, not the book's own figure.

Make the topping

  1. Boil sugar and water until syrup threads from a spoon.

  2. Remove from heat and add marshmallows cut into small pieces.

  3. Pour over beaten egg whites and mix well.

  4. Add broken pecan pieces and vanilla, then mix again.

Bake and serve

  1. Spread the mixture over Saltines.

  2. Bake in a slow oven at 300°F (150°C) until delicately browned.

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. Sugar + vanillatop 8% of all pairs
    Smell alikelow
    Cooked together35,032 recipes

    Shared aroma: beta-damascenone (apple, rose).

  2. Sugar + eggtop 21% of all pairs
    Smell alikemoderate
    Cooked together122,807 recipes

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

  3. Egg + meattop 22% of all pairs
    Smell alikemoderate
    Cooked together6,432 recipes

    Shared aroma: 2,4-decadienal (seaweed).

  4. Egg + vanillatop 23% of all pairs
    Smell alikelow
    Cooked together27,347 recipes

    Shared aroma: 1-octen-3-ol (mushroom, earthy).

  5. Vanilla + meattop 30% of all pairs
    Smell alikelow
    Cooked together331 recipes

    Shared aroma: guaiacol (smoky, sweet).

Sugar and vanilla barely smell alike, yet cooks put them together in 35,032 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

Sugar
Sweetens the mixture and, boiled into syrup, gives the topping its body.
Egg whites
Whipped into foam, they lighten the topping and help it set as it bakes.
Marshmallows
Melt into the hot syrup, adding sweetness and a soft, chewy texture.
Pecans
Add crunch and a toasted, nutty flavor against the soft topping.
Saltines
Form the crisp base that holds the topping while it bakes.

The step that matters

Boil the sugar and water until the syrup threads. Sugar boiled to this stage has enough concentration to set firm when cooled. Stopping early leaves the topping soft and sticky, while overcooking makes it hard and brittle.

Swap the vanilla

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

  1. Vanillathe original
  2. Raisinfits about as well
  3. Lemonfits less well
  4. Figfits less well

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