
Lemon custard cake is a vibrant dessert layered with tender cake and silky smooth lemon custard. I always bring it out in early spring when the markets fill up with fresh lemons and the scent brightens the whole kitchen. If you love citrus but crave something creamy too this cake is your dream.
The first time I baked this cake my sister swore it tasted like sunshine on a plate. Now I make it every Mother’s Day and it never fails to impress guests.
Ingredients
- All purpose flour: helps the cake hold together but still stay tender Look for flour with a moderate protein content for softness
- Baking powder: ensures a tall fluffy rise Always check yours is fresh by dropping a pinch in warm water
- Salt: balances the sweetness and deepens the citrus notes Use a fine sea salt for even mixing
- Unsalted butter: provides richness and a delicate crumb Choose high quality butter for a truly luxurious cake layer
- Granulated sugar: sweetens both cake and custard Opt for organic cane sugar if possible for pure flavor
- Large eggs: bind the cake and add structure Fresh farm eggs will create a beautiful golden color
- Vanilla extract: complements lemon while keeping flavors rounded Look for real vanilla over imitation for the best aroma
- Milk: adds moisture and tender crumb Whole milk gives the richest result
- Lemon juice: provides zing and brightness Always use freshly squeezed for the brightest flavor
- Lemon zest: captures essential oils and intense citrus fragrance Use a microplane right over the bowl to catch every bit
- Whole milk for custard: ensures a velvety smooth texture
- Large egg yolks for custard: intensify richness and create a silky custard layer
- Cornstarch: thickens the custard easily without lumps
- Butter for custard: rounds out creaminess and adds gloss to the filling
- Lemon curd: brings a sweet tangy finish as a glaze Choose a high quality jarred curd or make your own
- Warm water: thins the curd glaze as needed so it pours smoothly
Instructions
- Prepare the cake pans:
- Grease and line three eight inch pans with parchment paper pressing parchment flat for easy removal later
- Mix the dry ingredients:
- Combine flour baking powder and salt in a large bowl whisking gently to ensure even distribution
- Cream the butter and sugar:
- In another bowl beat softened butter and granulated sugar on medium until light and fluffy This aerates the mixture and helps the cake rise
- Incorporate eggs and vanilla:
- Add eggs one at a time mixing well between each addition Stir in vanilla extract for aroma
- Alternate wet and dry ingredients:
- Beginning and ending with the flour mixture alternately add dry ingredients and milk to the butter mixture Stir in fresh lemon juice and zest scraping the bowl to combine fully Each addition keeps batter tender and bright
- Bake the cake:
- Divide the batter evenly among pans Smooth the tops gently Bake for about twenty two to twenty five minutes until golden and a toothpick comes out clean Cool cakes completely in their pans which locks in moisture before transferring to racks
- Cook the lemon custard:
- In a saucepan whisk together egg yolks sugar cornstarch and a splash of milk Blend until mixture is smooth and lump free
- Add the rest of the milk:
- Slowly whisk in remaining milk for even texture Place over medium heat stirring constantly with a rubber spatula until thickened and creamy This ensures no scorching or lumps
- Finish the custard:
- Remove from heat Stir in butter lemon juice and zest for silkiness and tang Cover with wrap pressed onto the surface to prevent skin forming Allow to chill until set thick and cool
- Assemble the cake:
- Place one cake layer on a serving plate Spread with half the chilled custard Top with second cake layer repeat with remaining custard Smooth the final layer on top and finish with third cake layer
- Chill to set:
- Cover and chill the assembled cake thirty minutes This helps everything firm up for clean slicing
- Glaze with lemon curd:
- Warm lemon curd slightly to make pouring easy If it is very thick mix in a couple tablespoons warm water Spread evenly over top of cake for a shiny finish
- Slice and enjoy:
- Slice cake using a sharp serrated knife Serve chilled so every bite is creamy refreshing and boldly lemony

My favorite part is how the lemon zest transforms the custard into a burst of sunshine I once made this for my cousin’s bridal shower and everyone asked for the recipe before they finished their second slice.
Storage Tips
Store the assembled cake in the fridge covered with plastic or a cake dome to retain moisture It will stay perfect for three days For longer storage wrap individual slices tightly and freeze To serve thaw in the fridge overnight and enjoy chilled The custard keeps its creamy texture even after freezing
Ingredient Substitutions
If you run out of lemons try Meyer lemons for a floral twist For a dairy free version use plant based milk and vegan butter though flavor will change slightly You can also swap lemon curd glaze for a light dusting of powdered sugar or a mixed berry compote to switch things up
Serving Suggestions
Serve this cake as the finale to a springtime brunch or dress it up with extra berries and a swirl of whipped cream It is also perfect alongside iced tea or a sparkling elderflower drink For extra brightness add a tiny sprinkle of lemon zest just before serving
Cultural and Historical Notes
Lemon cakes originated in Europe as a luxury dessert lemons were prized for their fresh taste and golden color Custard cakes with their creamy layers have been cherished for generations and combining the two brings classic comfort with a tangy twist Modern versions like this one rely on fresh zest and juice which bring authentic flavor without artificial extracts
Seasonal Adaptations
Try pink lemons in late winter for a milder tartness Use blood oranges for a blushing custard twist in early spring Add edible flowers for a showstopper presentation at summer celebrations
Success Stories
Friends who claim not to like cake always change their minds after one forkful of this lemon custard masterpiece It is a secret weapon for impressing anyone with sophisticated tastes My neighbor once brought the leftovers to her book club and it disappeared before the meeting even started
Freezer Meal Conversion
Make and cool the cake fully then wrap layers separately in plastic and freeze up to two months The custard can also be frozen in an airtight container Lay wax paper over the surface to prevent ice crystal formation When ready to serve just thaw everything in the fridge assemble with fresh lemon curd and enjoy all over again

This cake is as cheery to eat as it is to look at. Let each slice sit for a few minutes out of the fridge for the tastiest texture and flavor.
Recipe FAQs
- → How do I ensure the cake stays moist?
Use room-temperature ingredients, avoid overbaking, and chill the cake to lock in moisture from the custard filling.
- → Can I use store-bought lemon curd?
Yes, store-bought lemon curd works well for the glaze and saves time in preparation.
- → How thick should the custard be?
The custard should be thick enough to hold between cake layers but still creamy for easy spreading.
- → Is it necessary to chill the assembled cake?
Chilling helps the custard set and makes slicing cleaner, ensuring neatly layered servings.
- → Can I substitute other citrus fruits?
Yes, orange or lime zest and juice can add different citrus profiles to this dessert.
- → What pairs well as a topping?
Fresh berries or a dusting of powdered sugar complement the tangy glaze and custard flavors.