Description
This Magic Lemon Custard Cake is a delicate, airy dessert that magically separates into three distinct layers while baking: a soft lemon-flavored cake on top, a creamy custard layer in the middle, and a tender sponge at the bottom. Infused with fresh lemon juice and zest, it’s a refreshing and elegant treat perfect for any occasion.
Ingredients
Scale
Eggs
- 4 large eggs, room temperature
- 1/4 teaspoon cream of tartar, optional
Dry Ingredients
- 3/4 cup sugar
- 1/2 teaspoon kosher salt
- 3/4 cup all-purpose flour, sifted
Wet Ingredients
- 1/2 cup unsalted butter, melted and cooled (1 stick)
- 1 teaspoon vanilla paste or extract
- 1/4 cup lemon juice (about 2 large lemons)
- 2 tablespoons finely grated lemon zest (about 2 large lemons)
- 1 3/4 cups whole milk, room temperature
For Serving
- Powdered sugar for dusting (optional)
Instructions
- Preheat and Prepare Pan: Preheat your oven to 325°F (165°C) and position a rack in the middle. Line an 8×8 inch baking dish with parchment paper to prevent sticking and ensure easy removal.
- Whip Egg Whites: Separate the eggs carefully, placing the whites into the bowl of a stand mixer fitted with a whisk attachment. Add the cream of tartar if using, then whisk on medium-high speed until stiff peaks form, about 3 to 5 minutes. Transfer the whipped egg whites into a separate bowl and set aside.
- Beat Egg Yolks: Without cleaning the bowl, add the egg yolks and whisk on medium-high speed until foamy, roughly 1 minute. With the mixer running, gradually drizzle in sugar and continue whisking until the yolks lighten in color and become creamy, about 2 to 3 minutes. Add salt, melted butter, and vanilla extract, and whisk for an additional 1 to 2 minutes to fully incorporate.
- Add Flour and Lemon: Switch to the paddle attachment and add sifted flour. Mix on medium-low speed until the batter is smooth and uniform. Pour in the lemon juice and lemon zest, then slowly add the whole milk while mixing to combine everything thoroughly. Use a silicone spatula to scrape the bowl’s sides and bottom to ensure even mixing.
- Fold in Egg Whites: Gently fold a third of the whipped egg whites into the batter using the silicone spatula to lighten it. Repeat folding in the remaining egg whites in two more additions, taking care not to overmix. It’s okay if there are a few pockets of egg whites remaining.
- Bake: Pour the batter into the prepared baking pan and place it in the oven. Bake for 45 to 55 minutes, or until the top is lightly golden and the center jiggles slightly when the pan is shaken gently.
- Cool and Chill: Let the cake cool completely at room temperature. Once cooled, cover and refrigerate for at least one hour, preferably overnight, to let the custard set fully.
- Serve: Remove the cake from the pan, dust generously with powdered sugar if desired, cut into 9 squares, and serve either cool or at room temperature.
Notes
- Store leftover cake wrapped tightly in plastic wrap in the refrigerator for up to one week, or freeze it for up to three months.
- Make sure eggs and milk are at room temperature for best results to achieve the proper custard texture.
- Do not overmix when folding in egg whites to maintain the light and airy structure of the cake.
- Use fresh lemons for the best bright lemon flavor.
Keywords: Magic Lemon Custard Cake, lemon custard cake, lemon dessert, custard cake, layered cake, easy lemon cake, lemon zest cake, tender lemon cake