Name: Spanish Buns
Ingredients: ½ cup milk; 2 large eggs, well beaten; 1 cup all-purpose flour; 1 teaspoon baking powder; 1 tablespoon ground cinnamon

Why it works: Flour and cinnamon are a kitchen classic. They rank in the top 9% of all ingredient pairs, and cooks put them together in 17,341 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓

Spanish Buns

Ingredients

Directions

The book gives no oven temperature. The 350°F (175°C) in the steps was added when the recipe was transcribed, as a starting point.

Prepare

Preheat the oven to 350°F (175°C).

Make the batter

In a bowl, combine the milk, beaten eggs, flour, baking powder, and cinnamon, and mix until smooth.
Pour the batter into a shallow pan.

Bake and finish

Bake until golden brown.
Let cool and then ice as desired.

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.

Flour + cinnamontop 9% of all pairs

Smell alikemoderate

Cooked together17,341 recipes

Shared aroma: isobutyraldehyde (malty, green).
Milk + cinnamontop 10% of all pairs

Smell alikemoderate

Cooked together12,655 recipes

Shared aroma: cuminaldehyde (Spicy, cumin).
Milk + flourtop 14% of all pairs

Smell alikelow

Cooked together78,219 recipes

Shared aroma: isobutyraldehyde (malty, green).
Egg + flourtop 15% of all pairs

Smell alikelow

Cooked together106,462 recipes

Shared aroma: isobutyraldehyde (malty, green).
Milk + eggtop 18% of all pairs

Smell alikemoderate

Cooked together88,785 recipes

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

Milk and flour barely smell alike, yet cooks put them together in 78,219 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: Bind the batter and add structure as they set during baking.
All-purpose flour: Provides the main structure of the batter as its proteins and starch set in the oven.
Baking powder: Releases gas in the batter so the bun rises and becomes lighter.
Milk: Adds moisture and helps form a smooth, pourable batter.