Name: Lemonade
Ingredients: 1 lemon, pared very thin; 2 cups boiling water; lemon juice to taste; sugar to taste; optional: a pinch of cinnamon; optional: a pinch of ginger

Why it works: Cinnamon and ginger match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 6,380 recipes. Both carry estragole, which smells anise, licorice. The science ↓

Lemonade

Ingredients

Directions

Make the lemon infusion

Pour boiling water over the thinly pared lemon rind and cover it tightly.
For extra flavor, boil a little cinnamon and ginger in the water before adding the lemon.

Finish and strain

Once cooled, add lemon juice and sugar to taste.
If desired, add more water and strain through muslin.

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.

Photo for illustrative purposes only · Contact us to use it

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.

Cinnamon + gingertop 1% of all pairs

Smell alikestrong

Cooked together6,380 recipes

Shared aroma: estragole (anise, licorice).
Lemon + gingertop 5% of all pairs

Smell alikestrong

Cooked together5,154 recipes

Shared aroma: beta-phellandrene (minty, terpene).
Lemon + cinnamontop 7% of all pairs

Smell alikestrong

Cooked together7,950 recipes

Shared aroma: beta-phellandrene (minty, terpene).
Sugar + cinnamontop 10% of all pairs

Smell alikelow

Cooked together30,779 recipes

Shared aroma: guaiacol (smoky, sweet).
Sugar + gingertop 17% of all pairs

Smell alikelow

Cooked together14,054 recipes

Shared aroma: 1-penten-3-one (fish, pungent).

Sugar and cinnamon barely smell alike, yet cooks put them together in 30,779 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

Lemon rind: Lemon oil from the pared peel gives the drink its aromatic lemon flavor.
Lemon juice: Provides the sour acidity that balances the sweetness of the drink.
Sugar: Adds sweetness to offset the sharpness of the lemon juice.