Food EditionCookFrenchDessertClassic Citrus Curd
45 minIntermediateServes 2 cups
French · Dessert

Classic Citrus Curd

This is a fundamental technique for turning juice into a dense, bright spread. Once you master the temperature control of the stovetop, you can swap the citrus to suit whatever is in your bowl.

Total time
45 min
Hands-on
15 min
Serves
2 cups
Difficulty
Intermediate
Before you start

Control the heat to avoid scrambled eggs.

Keep your heat low and stay at the stove; curd breaks quickly if the eggs get too hot before the emulsion sets.

  • small stainless steel saucepan
  • heat-proof mixing bowl
  • fine mesh strainer
  • whisk
  • rubber spatula
Ingredients

What goes in.

  • 1/2 cupfresh citrus juice (lemon, lime, or grapefruit)
  • 1 tbspfinely grated citrus zest
  • 3/4 cupgranulated sugar
  • 3large eggs
  • 1large egg yolk
  • 6 tbspunsalted butter, cubed and softened
The key technique

Indirect gentle heating

Placing your bowl over a pan of simmering water prevents direct contact with the burner, allowing the eggs to thicken slowly without curdling.

Step by step

The method.

  1. Prepare the water bath

    Fill your saucepan with an inch of water and bring it to a simmer over medium heat.

  2. Whisk the base

    In the mixing bowl, whisk the sugar, eggs, yolk, juice, and zest until combined. Place the bowl over the simmering water.

  3. Thicken the mixture

    Whisk constantly for 8 to 10 minutes. Stop when the curd thickens enough to hold a clean line when you run your finger across the back of a coated spoon.

  4. Mount the butter

    Remove the bowl from the heat. Whisk in the cubed butter one piece at a time until the curd is glossy and smooth.

  5. Strain and chill

    Pour the curd through a fine mesh strainer to catch any stray bits of cooked egg. Press a piece of plastic wrap directly onto the surface and refrigerate until cold.

Variations

Other turns to take.

Blood Orange

Replace the lemon juice with blood orange juice; reduce the sugar by one tablespoon to maintain the tart profile.

Meyer Lemon

Use Meyer lemon juice for a floral, less acidic finish; increase the zest to ensure the brightness comes through.

Tips & troubleshooting

When it doesn't go to plan.

Tip

Use a glass or stainless steel bowl; avoid reactive metals like aluminum, which can give the curd a metallic taste.

Tip

If you see small yellow bits in the mixture, keep whisking off the heat; the residual heat of the butter often incorporates minor lumps.

Tip

Pressing plastic wrap against the surface prevents a skin from forming while the curd cools.

Questions

The ones that keep coming up.

Why did my curd turn out runny?

The curd was likely not cooked long enough. If it is fully cold and still loose, it did not reach the necessary temperature to set the egg proteins.

How long will this stay fresh?

Keep it in a sealed jar in the refrigerator for up to one week.

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