Food EditionCookFrenchDessertStovetop Lemon Curd
30 minIntermediateServes 1.5 cups
French · Dessert

Stovetop Lemon Curd

The secret to a stable curd is patience at the stove. If you rush the heat, you end up with scrambled eggs; keep it low and steady, and you will have a bright, velvet-textured spread.

Total time
30 min
Hands-on
20 min
Serves
1.5 cups
Difficulty
Intermediate
Before you start

Watch the temperature, not the clock.

The curd is finished when it thickens enough to hold a line drawn through it on the back of a wooden spoon. Keep the heat strictly at a simmer so the eggs don't curdle.

  • Medium heat-proof bowl
  • Small saucepan
  • Whisk
  • Fine-mesh sieve
  • Silicone spatula
Ingredients

What goes in.

  • 3large lemons, zested and juiced (about 1/2 cup juice)
  • 1 cupgranulated sugar
  • 3large eggs
  • 1large egg yolk
  • 6 tbspunsalted butter, cubed and chilled
The key technique

Mastering the double boiler

By cooking over steaming water rather than direct heat, you provide the gentle, indirect energy needed to thicken the eggs without turning them into solid curds.

Step by step

The method.

  1. Prep the boiler

    Fill a small saucepan with an inch of water and bring to a simmer. Place your heat-proof bowl over the top, ensuring the bottom does not touch the water.

  2. Combine the base

    Whisk the sugar, lemon zest, lemon juice, whole eggs, and yolk in the bowl until fully combined.

  3. Thicken

    Continue to whisk steadily for about 10 to 12 minutes. The mixture will eventually become opaque and thick enough to coat your spatula.

  4. Emulsify

    Remove the bowl from the heat. Whisk in the cold butter, one cube at a time, until the curd is smooth and glossy.

  5. Strain and cool

    Pour the curd through a fine-mesh sieve into a clean jar to remove the zest and any stray egg bits. Press a piece of plastic wrap directly onto the surface to prevent a skin from forming.

Variations

Other turns to take.

Lime or Grapefruit Curd

Substitute the lemon juice and zest with an equal amount of lime or grapefruit for a sharper or more bitter profile.

Passion Fruit Curd

Replace half the lemon juice with strained passion fruit pulp for a distinct tropical aroma.

Tips & troubleshooting

When it doesn't go to plan.

Tip

Always use a non-reactive bowl like glass or stainless steel; aluminum will react with the acid and leave a metallic taste.

Tip

If you accidentally overcook it and see tiny lumps, don't throw it out. Simply pour it through your fine-mesh sieve to catch the solids.

Tip

Let the curd chill in the refrigerator for at least four hours before using; it will firm up significantly as it cools.

Questions

The ones that keep coming up.

Can I use less sugar?

The sugar is necessary not just for sweetness, but to keep the egg proteins from coagulating too quickly. Reducing it significantly will result in a grainy, thin texture.

How long does it stay fresh?

Stored in an airtight jar, it will hold its quality in the refrigerator for up to two weeks.

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