If you are craving a dessert that perfectly balances bright citrus zestiness with a silky smooth texture, this Lemon Custard Cake Recipe is exactly the treat you need. Imagine a tender, moist cake infused with fresh lemon juice and zest, layered lovingly with a luscious lemon custard that melts in your mouth, and finished with a tangy lemon glaze that adds just the right amount of sweetness. This cake is a celebration of lemon in every bite, making it a standout dessert for any occasion or simply a cheerful way to brighten your day.

Ingredients You’ll Need
The beauty of this Lemon Custard Cake Recipe lies in its straightforward ingredients that each bring something special to the table. From the richness of butter to the tang of fresh lemon, every element combines to create a harmonious blend of flavor, texture, and color.
- All-purpose flour (2 1/2 cups / 300g): The foundation that gives the cake structure and crumb.
- Baking powder (1 teaspoon): Helps the cake rise beautifully and stay light.
- Baking soda (1/2 teaspoon): Works with the acidic lemon and buttermilk to tenderize and lift the cake.
- Salt (1/4 teaspoon): Enhances all the flavors, balancing the sweetness and brightness.
- Unsalted butter (1 cup / 2 sticks / 226g), softened: Adds richness and moisture, crucial for that tender crumb.
- Granulated sugar (1 3/4 cups / 350g): Sweetens the cake just right while helping create a delicate crumb.
- Large eggs (3): Bind the ingredients and add richness and stability.
- Vanilla extract (1 teaspoon): Adds depth and rounds out the lemon’s sharpness.
- Buttermilk (1 cup / 240ml): Infuses the cake with moisture and works with baking soda to keep it light.
- Lemon juice, freshly squeezed (1/4 cup + 1/4 cup for custard + up to 3-4 tablespoons for glaze): The heart of the cake’s bright, refreshing flavor.
- Lemon zest (2 tablespoons finely grated for batter and 1 teaspoon for custard and glaze): Packs a punch of citrus aroma and flavor.
- Heavy cream (1 cup / 240ml) for custard: Creates the luxurious custard filling.
- Granulated sugar (1/2 cup / 100g) for custard: Sweetens and balances the tartness.
- Egg yolks (2) for custard: Help thicken and enrich the custard.
- Cornstarch (2 tablespoons): Thickens the custard to that perfect creamy consistency.
- Unsalted butter (1 tablespoon) for custard: Adds silkiness and richness to the filling.
- Pinch of salt for custard: Amplifies all the flavors, especially the lemon.
- Powdered sugar (1 cup / 120g) for glaze: Provides sweetness and smooth texture for drizzling.
How to Make Lemon Custard Cake Recipe
Step 1: Prep Your Oven and Pan
Start by preheating your oven to 350°F (175°C). Grease and flour a 9-inch round cake pan, or line the bottom with parchment paper to make sure your cake comes out perfectly without sticking. This prep sets the stage for an evenly baked cake that’s easy to remove and serve.
Step 2: Mix Dry Ingredients
Whisk together the flour, baking powder, baking soda, and salt in a medium bowl. Combining these dry ingredients first helps them distribute evenly throughout the batter, ensuring your cake rises consistently and has a tender crumb.
Step 3: Cream Butter and Sugar
In a large mixing bowl, beat the softened butter and granulated sugar until light and fluffy. This aeration not only sweetens the base but also incorporates air that gives the cake its delightful lightness.
Step 4: Add Eggs and Vanilla
Beat in the eggs one at a time so they fully incorporate, then stir in the vanilla extract. This step adds structure and deepens the flavor, building the cake’s foundation before mixing in the dry ingredients.
Step 5: Combine Wet and Dry Ingredients
Alternate adding the dry ingredients and buttermilk to the butter mixture, beginning and ending with the dry. Mix just until combined—overmixing can toughen the cake. This technique keeps the crumb tender and moist.
Step 6: Add Lemon Juice and Zest
Stir in the freshly squeezed lemon juice and lemon zest. These ingredients burst with citrus brightness, creating the signature flavor that makes this Lemon Custard Cake Recipe so memorable and refreshing.
Step 7: Bake the Cake
Pour the batter into your prepared pan and smooth the top. Bake for 30 to 35 minutes, checking doneness with a skewer inserted in the center — it should come out clean. The cake’s delicate texture and golden hue will make your kitchen smell like a lemon orchard.
Step 8: Cool the Cake
Let the cake rest for 10 minutes in the pan, then carefully invert it onto a wire rack to cool completely. Proper cooling is important to keep your layers firm and ready to be sliced and filled.
Step 9 to 12: Prepare the Lemon Custard Filling
Whisk heavy cream, sugar, lemon juice, egg yolks, cornstarch, and salt in a saucepan and cook over medium heat, stirring constantly until thickened and simmering. Remove from heat and stir in butter and lemon zest, then chill the custard in the fridge covered with plastic wrap to prevent skin formation. This velvety custard is the star that transforms a simple cake into a luscious lemon-filled delight.
Step 13 to 16: Assemble the Cake
Level the cooled cake top if needed, then carefully slice it horizontally into two even layers. Place one layer on a plate, spread the chilled lemon custard evenly over it, and top with the second layer. This creates a stunning layered cake that invites you to dig in.
Step 17 to 19: Make and Apply the Lemon Glaze
Whisk powdered sugar with lemon juice until smooth and drizzle it over the top of the cake, adding zest for extra zing if you like. Let the glaze set for a few minutes — it adds a beautiful shine and a final burst of citrus flavor that ties the whole dessert together.
How to Serve Lemon Custard Cake Recipe

Garnishes
Fresh mint leaves, thin lemon slices, or candied lemon peel make gorgeous garnishes that add color and a fresh aroma to your serving plate, enhancing the cake’s citrus theme without overpowering the delicate flavors.
Side Dishes
Pair this cake with a scoop of vanilla ice cream or a dollop of whipped cream to add creaminess alongside the tart custard. A cup of fragrant Earl Grey or a light floral tea complements the lemon perfectly and rounds out a delightful dessert experience.
Creative Ways to Present
Serve individual slices with a drizzle of extra lemon glaze and a sprinkle of powdered sugar, or turn the cake into mini trifle cups layering cake cubes, custard, and fresh berries for a playful twist. Presentation can elevate this beloved Lemon Custard Cake Recipe to party-ready status!
Make Ahead and Storage
Storing Leftovers
Keep any leftover Lemon Custard Cake covered tightly in the refrigerator—it’s best enjoyed within 3 to 4 days while the custard remains silky and fresh.
Freezing
This cake freezes well if wrapped tightly in plastic wrap and aluminum foil to prevent freezer burn. Thaw in the refrigerator overnight for best texture and flavor once ready to serve.
Reheating
Since it’s a custard-filled cake, it’s best served chilled or at room temperature. If you prefer it slightly warmer, let the slice sit out for 20 minutes before enjoying; microwaving may cause the custard to separate or become runny.
FAQs
Can I use lemon extract instead of fresh lemon juice?
While lemon extract adds flavor, fresh lemon juice provides the bright acidity and natural brightness essential to this Lemon Custard Cake Recipe’s character. For the best taste, fresh lemons are highly recommended.
Is buttermilk necessary for this recipe?
Buttermilk adds moisture and tenderness, and it reacts with baking soda to help the cake rise. If you don’t have buttermilk, you can make a substitute by adding a tablespoon of vinegar or lemon juice to a cup of milk and letting it sit for 5 minutes.
Can I make this cake gluten-free?
Yes! Substitute the all-purpose flour with a high-quality gluten-free flour blend that includes xanthan gum. Keep in mind that texture might vary slightly, but the lemon custard flavor will remain just as delightful.
How long does it take for the custard to set?
The custard needs at least 2 hours in the fridge to chill and thicken properly. For the best consistency, make it a few hours or even overnight ahead of time.
Can I make this cake a day before serving?
Absolutely! This Lemon Custard Cake Recipe actually benefits from resting as the flavors deepen and the cake layers fully absorb the custard. Just keep it refrigerated and covered until serving.
Final Thoughts
This Lemon Custard Cake Recipe has quickly become one of my favorite go-to desserts whenever I want to impress family or friends with a show-stopping yet approachable cake. Its bright, tender crumb paired with creamy, tangy custard is simply irresistible. Give it a try, and I promise it will become a beloved staple in your recipe collection too!
Print
Lemon Custard Cake Recipe
- Prep Time: 45 minutes
- Cook Time: 30 minutes
- Total Time: 1 hour 15 minutes plus 2 hours chilling
- Yield: 8-10 servings
- Category: Dessert
- Method: Baking
- Cuisine: American
Description
This Lemon Custard Cake is a delightful and easy-to-make dessert combining a soft, moist lemon-flavored cake with a rich, creamy lemon custard filling, topped with a tangy lemon glaze. Perfect for spring and summer gatherings, this recipe balances sweet and citrus flavors beautifully, offering a refreshing twist on a classic custard cake.
Ingredients
Cake Ingredients
- 2 1/2 cups (300g) all-purpose flour
- 1 teaspoon baking powder
- 1/2 teaspoon baking soda
- 1/4 teaspoon salt
- 1 cup (2 sticks or 226g) unsalted butter, softened
- 1 3/4 cups (350g) granulated sugar
- 3 large eggs
- 1 teaspoon vanilla extract
- 1 cup (240ml) buttermilk
- 1/4 cup (60ml) lemon juice, freshly squeezed
- 2 tablespoons lemon zest, finely grated
Custard Filling Ingredients
- 1 cup (240ml) heavy cream
- 1/2 cup (100g) granulated sugar
- 1/4 cup (30ml) lemon juice, freshly squeezed
- 2 large egg yolks
- 2 tablespoons cornstarch
- 1 tablespoon unsalted butter
- 1 teaspoon lemon zest, finely grated
- Pinch of salt
Lemon Glaze Ingredients
- 1 cup (120g) powdered sugar
- 3–4 tablespoons lemon juice, freshly squeezed (adjust to desired consistency)
- 1 teaspoon lemon zest, finely grated (optional)
Instructions
- Preheat and Prepare Pan: Preheat your oven to 350°F (175°C). Grease and flour a 9-inch round cake pan. Optionally, line the bottom with parchment paper for easier removal.
- Combine Dry Ingredients: In a medium bowl, whisk together the all-purpose flour, baking powder, baking soda, and salt until evenly combined.
- Cream Butter and Sugar: In a large bowl, use an electric mixer to cream softened butter and granulated sugar together until light and fluffy, about 3-5 minutes.
- Add Eggs and Vanilla: Beat in the eggs one at a time, ensuring each is incorporated before adding the next, then stir in the vanilla extract for flavor.
- Mix Wet and Dry Ingredients: Gradually add the dry ingredients to the wet mixture alternately with the buttermilk, starting and ending with the dry ingredients. Mix just until combined to keep the batter light.
- Add Lemon Flavor: Stir in the freshly squeezed lemon juice and finely grated lemon zest to infuse the batter with bright citrus notes.
- Bake the Cake: Pour the batter evenly into the prepared pan and bake for 30-35 minutes, or until a wooden skewer inserted in the center comes out clean.
- Cool the Cake: Allow the cake to cool in the pan for 10 minutes before inverting it onto a wire rack to cool completely.
- Prepare Custard Mixture: In a medium saucepan, whisk together the heavy cream, granulated sugar, lemon juice, egg yolks, cornstarch, and a pinch of salt until smooth.
- Cook Custard: Cook over medium heat, stirring constantly to avoid lumps and burning, until the mixture thickens and reaches a gentle simmer, about 5-7 minutes.
- Finish Custard: Remove from heat, then stir in unsalted butter and lemon zest for richness and extra flavor.
- Chill Custard: Transfer the custard to a bowl and cover with plastic wrap pressed directly onto its surface to prevent skin formation. Refrigerate for at least 2 hours until fully chilled and thickened.
- Level the Cake: Once the cake is completely cool, trim the top with a serrated knife if needed to create a flat surface.
- Slice Cake Layers: Carefully slice the cake horizontally into two even layers with a sharp serrated knife.
- Assemble Cake: Place one cake layer on your serving plate or cake stand, spread the chilled lemon custard evenly over it.
- Top Cake: Gently place the second cake layer on top of the custard filling to complete the cake structure.
- Make Lemon Glaze: In a small bowl, whisk powdered sugar and lemon juice until smooth, adding extra lemon juice tablespoon by tablespoon to reach your desired glaze consistency.
- Add Zest to Glaze (Optional): Stir in lemon zest for added texture and flavor if desired.
- Glaze the Cake: Drizzle the lemon glaze evenly over the top of the assembled cake and let it set for a few minutes before serving.
Notes
- For best results, use fresh lemons for juice and zest to maximize flavor brightness.
- Allow the cake to cool completely before slicing and assembling to prevent custard melting.
- You can prepare the custard a day ahead and keep refrigerated to save time on serving day.
- Adjust sweetness and lemon intensity in the glaze to your taste by adding more or less powdered sugar and lemon juice.
- Ensure to stir custard constantly while cooking to prevent lumps and curdling.
- Use an electric mixer for creaming butter and sugar to achieve the fluffiest cake texture.

