Name: Plain Gingerbread, or Spice Bread
Ingredients: 1 cup unsalted butter, softened; 2 cups molasses; 6 light, scant cups all-purpose flour, sifted; 1½ teaspoons salt; 1 cup sweet milk; 2 teaspoons baking soda; 2 teaspoons ground ginger (or 1 teaspoon ground cloves, ½ teaspoon ground cinnamon, and a pinch of ground mace); 3 teaspoons grated orange peel (optional)

Why it works: Ginger and orange match in chemistry and in kitchens. They rank in the top 4% of all ingredient pairs, and cooks put them together in 1,833 recipes. Both carry 1-octen-3-one, which smells mushroom, metallic. The science ↓

Plain Gingerbread, or Spice Bread

Oven, in the book's wordsA steady oven

Ingredients

1 cup unsalted butter, softened
2 cups molasses
6 light, scant cups all-purpose flour, sifted
1½ teaspoons salt
1 cup sweet milk
2 teaspoons baking soda
2 teaspoons ground ginger (or 1 teaspoon ground cloves, ½ teaspoon ground cinnamon, and a pinch of ground mace)
3 teaspoons grated orange peel (optional)

Directions

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

Prepare the batter

Preheat the oven to 300°F (150°C).
Cream the softened butter in a large bowl.
Mix the spices and stir them into the creamed butter.
Add the molasses gradually, stirring from the center to combine.
When most of the flour is incorporated, add the milk with dissolved baking soda and mix well.

Bake

Pour the batter into greased sheet pans or small square tins, filling them two-thirds full.
Alternatively, bake as cookies in muffin rings or drop-cakes in small drop-cake rings.

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.

Ginger + orangetop 4% of all pairs

Smell alikestrong

Cooked together1,833 recipes

Shared aroma: 1-octen-3-one (mushroom, metallic).
Butter + milktop 7% of all pairs

Smell alikemoderate

Cooked together81,283 recipes

Shared aroma: (z)-4-heptenal (biscuit, cream).
Butter + flourtop 12% of all pairs

Smell alikelow

Cooked together124,287 recipes

Shared aroma: isobutyraldehyde (malty, green).
Molasses + gingertop 14% of all pairs

Smell alikelow

Cooked together4,116 recipes

Shared aroma: ethanol (alcoholic, ethereal).
Flour + milktop 14% of all pairs

Smell alikelow

Cooked together78,219 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

Unsalted butter: Provides fat and tenderness, carrying flavor through the creamed batter.
Molasses: Adds sweetness, dark color, and moisture with a rich, deep flavor.
All-purpose flour: Builds the structure that holds the batter together as it bakes.
Baking soda: Reacts with the molasses acidity to lift the batter and help it rise.
Sweet milk: Adds moisture and helps hydrate the flour into a smooth batter.

The step that matters

Adding the baking soda and milk. Baking soda must be fully dissolved and mixed in evenly, or pockets of soda leave bitter spots and uneven rise. Adding milk once most flour is in keeps the batter from becoming overworked.

Swap the orange

The recipe marks orange as optional. How well each one fits the dish's main ingredients (butter, molasses, flour, milk, ginger):

Raisinfits better
Vanillafits better
Figfits better
Orangethe original

Fit is the average pairing score against butter, molasses, flour, milk, ginger. 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.

Orange Bundt Cake349 recipes

Ginger Cookies213 recipes

Orange Cream Rice Pudding121 recipes

Orange Gelatin100 recipes

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Plain Gingerbread, or Spice Bread