Name: To Soften Pears
Ingredients: Large dewing pears; Cloves; Water; Loaf sugar; Lemon peel

Why it works: Pear and clove match in chemistry and in kitchens. They rank in the top 7% of all ingredient pairs, and cooks put them together in 512 recipes. Both carry ethyl octanoate, which smells fruity, wine. The science ↓

To Soften Pears

Ingredients

Directions

Prepare

Peel the pears and insert a clove into the blossom end.
Place the pears in a well-tinned saucepan with a new pewter spoon in the middle.

Cook the pears

Fill the saucepan with water and set it over a low fire for 3–4 hours until the pears are soft and the water reduces.
Add enough loaf sugar to create a thick syrup and boil the pears in it.

Serve

Cut lemon peel into strips and hang them around the pears before serving with the syrup.

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.

Pear + clovetop 7% of all pairs

Smell alikestrong

Cooked together512 recipes

Shared aroma: ethyl octanoate (fruity, wine).
Clove + lemontop 10% of all pairs

Smell alikestrong

Cooked together8,150 recipes

Shared aroma: eucalyptol (eucalyptus, herbal).
Pear + lemontop 13% of all pairs

Smell alikemoderate

Cooked together942 recipes

Shared aroma: alpha-pinene (pine, turpentine).
Pear + sugartop 17% of all pairs

Smell alikelow

Cooked together2,079 recipes

Shared aroma: 1-penten-3-one (fish, pungent).
Sugar + lemontop 18% of all pairs

Smell alikelow

Cooked together53,532 recipes

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

Sugar and lemon barely smell alike, yet cooks put them together in 53,532 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

Pears: Slow simmering softens their flesh until they become tender throughout.
Loaf sugar: Thickens the cooking liquid into a syrup and adds sweetness.
Cloves: Adds a warm, spiced aroma that infuses the pears as they cook.
Lemon peel: Adds a bright citrus aroma that lifts the sweetness of the syrup.

The step that matters

Simmering low and slow for 3–4 hours. Gentle, prolonged heat softens the pears' cell walls evenly without breaking them apart, while the water slowly reduces into a syrup. Too much heat can scorch the bottom of the pan or turn the fruit mushy before it is evenly tender.