Ingredients

• 9 large egg yolks
• 2/3 cup lemon juice
• 3/4 cups sugar
• 4 teaspoons lemon zest
• 14 tablespoons butter, cubed, room temperature

Directions

Bring an inch or two of water to a simmer in a saucepan or the bottom of a double boiler.

Combine the egg yolks, lemon juice, sugar, and zest in a stainless mixing bowl or the top of a double boiler and whisk until the sugar is completely dissolved. Set the mixture over the simmering water and continue to whisk until the eggs are thickened and warm, about 12 minutes.

Add the butter a few pieces at a time, stirring until each addition is blended into the eggs before adding more. Continue stirring until all of the butter is blended into the curd.

Transfer the curd (straining if desired) to a bowl set in an ice bath and cool, stirring from time to time. Once the curd has reached room temperature it is ready to serve or store in a covered container in the refrigerator for up to 3 days.