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Dessert

Lemon Curd I

A sweet, tart spread made from lemon juice, rind, butter, sugar, and eggs.

From the Recipes Wiki (Fandom) · 5 ingredients
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Why it works: Butter and lemon are a kitchen classic. They rank in the top 16% of all ingredient pairs, and cooks put them together in 41,227 recipes. Both carry 3-hexenal, which smells apple, fruity. The science ↓

Lemon Curd I

Ingredients

Directions

Make the curd

  1. Put butter, sugar, grated rind, and strained lemon juice into a double saucepan and stir occasionally.

  2. When sugar has dissolved, add the well-beaten egg.

  3. Stir until it thickens, but do not boil.

Jar and chill

  1. Turn into warm, dry jars.

  2. Cool.

  3. Cover and refrigerate.

Nutrition, whole recipe (rough)

241Calories
7 gProtein
17 gFat
17 gCarbs
What these numbers assume: 4 portions
IngredientPortion assumedkcal
Butter1 tbsp (14g)102
Egg1 large egg (50g)78
Sugar1 tbsp (12.5g) granulated49
Lemonjuice of 1 lemon (48ml)12

One typical portion per ingredient; the recipe's quantities are not counted. A rough guide only, not for medical or dietary planning.

Recipe from the Recipes Wiki (Fandom).

Steps grouped into stages for easier reading; the method is the source's own.

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. Butter + lemontop 16% of all pairs
    Smell alikemoderate
    Cooked together41,227 recipes

    Shared aroma: 3-hexenal (apple, fruity).

  2. Butter + eggtop 17% of all pairs
    Smell alikemoderate
    Cooked together118,967 recipes

    Shared aroma: decanal (soap, orange peel).

  3. Butter + sugartop 17% of all pairs
    Smell alikemoderate
    Cooked together98,233 recipes

    Shared aroma: guaiacol (smoky, sweet).

  4. Lemon + sugartop 18% of all pairs
    Smell alikelow
    Cooked together53,532 recipes

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

  5. Lemon + eggtop 19% of all pairs
    Smell alikelow
    Cooked together44,316 recipes

    Shared aroma: (e,e)-2,4-decadienal (fatty, deep fried).

Lemon and sugar 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

Eggs
Set and thicken the curd as they cook gently, giving it body.
Butter
Adds richness and a smooth, silky mouthfeel to the curd.
Sugar
Sweetens the curd and balances the sharpness of the lemon juice.
Lemon juice
Provides the tart, acidic flavour that defines the curd.
Lemon rind
Contributes aromatic lemon oils for fragrance and extra flavour.

The step that matters

Stir until it thickens, but do not boil. Egg proteins set gently as the curd heats; if it boils, the eggs scramble and the curd turns grainy and curdled. Gentle, constant stirring over simmering water keeps it smooth.

Swap the lemon

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

  1. Vanillafits better
  2. Lemonthe original
  3. Raisinfits about as well
  4. Figfits about as well

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