Lemon Custard Filling


This lemon custard recipe makes the perfect filling for a white, yellow, or citrus cake!

Prep Time:
5 mins
Cook Time:
15 mins
Total Time:
20 mins
1 1/2 cups


  • ½ cup white sugar

  • ¼ cup cornstarch

  • ¼ teaspoon salt

  • 2 large egg yolks

  • ¾ cup water

  • cup lemon juice

  • 2 tablespoons unsalted butter


  1. Mix together sugar, cornstarch, and salt in the top of a double boiler over simmering water.

  2. Whisk water and egg yolks together in a small bowl. Pour egg yolk mixture into the sugar mixture, whisking until fully incorporated. Cook, stirring constantly, until mixture thickens.

  3. Remove from the heat and stir in lemon juice and butter. Cover with plastic wrap and let sit until completely cooled.

Nutrition Facts (per serving)

70 Calories
3g Fat
12g Carbs
1g Protein
Nutrition Facts
Servings Per Recipe 12
Calories 70
% Daily Value *
Total Fat 3g 3%
Saturated Fat 2g 8%
Cholesterol 39mg 13%
Sodium 64mg 3%
Total Carbohydrate 12g 4%
Dietary Fiber 0g 0%
Total Sugars 9g
Protein 1g
Vitamin C 3mg 16%
Calcium 5mg 0%
Iron 0mg 1%
Potassium 12mg 0%

* Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

** Nutrient information is not available for all ingredients. Amount is based on available nutrient data.

(-) Information is not currently available for this nutrient. If you are following a medically restrictive diet, please consult your doctor or registered dietitian before preparing this recipe for personal consumption.

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