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Lemon Custard Cake

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Lemon Custard Cake is a delightful dessert featuring a light, fluffy cake layer on top and a creamy, tangy lemon custard layer beneath. This elegant, refreshing treat is simple to make with everyday ingredients and perfect for any occasion.

Ingredients

4 large eggs, separated

¾ cup granulated sugar

½ cup unsalted butter, melted and slightly cooled

1 teaspoon vanilla extract

¾ cup all-purpose flour

¼ cup freshly squeezed lemon juice

Zest from 2 large lemons

1¾ cups lukewarm milk

Powdered sugar for dusting

Instructions

  1. Preheat the oven to 325°F (165°C). Line an 8×8-inch baking dish with parchment paper, leaving overhang on the sides, and lightly grease with cooking spray.
  2. In a clean bowl, whip the egg whites until stiff peaks form. Set aside.
  3. In a separate bowl, beat the egg yolks and sugar until pale yellow.
  4. Add melted butter and vanilla extract to the yolk mixture and mix until well combined.
  5. Gradually mix in the flour until evenly incorporated.
  6. Add lemon juice and lemon zest, mixing until combined.
  7. Slowly beat in the lukewarm milk until well combined.
  8. Gently fold in the whipped egg whites by hand. It's okay if small lumps of egg whites remain; these will create the top layer during baking.
  9. Pour the batter into the prepared pan.
  10. Bake for 40–60 minutes, until the center is barely jiggly and the top is firm to the touch.
  11. Cool the cake completely before dusting with powdered sugar.

Notes

  • Store leftovers in the refrigerator in an airtight container for up to 3 days.
  • Reheat individual slices in the microwave for 15–20 seconds or enjoy chilled.
  • Use fresh lemon juice for best flavor, but bottled lemon juice can be substituted.
  • Separating eggs and whipping whites is essential for the cake’s texture.
  • Stick to the 8×8-inch baking dish size for best results.
  • The powdered sugar topping is optional.
  • The cake can be frozen wrapped tightly for up to 2 months.
  • Vegetarian-friendly recipe.

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