
A sunny Lemon Blueberry Cake that marries tangy citrus with sweet berries in delightful balance. Every bite offers moist vanilla goodness dotted with juicy blueberries and enhanced by fresh lemon zest, all covered in fluffy lemon buttercream.
Whenever I bake this cake, it takes me back to the best parts of summer. The way those juicy berries melt while baking, making little pockets of jam-like sweetness next to the zingy lemon flavor - you're definitely creating something magical.
Key Ingredients
- Fresh Blueberries: Or frozen without thawing
- Fresh Lemons: You'll need both zest and juice
- Unsalted Butter: Make sure it's soft
- Large Eggs: Take them out early to warm up
- Whole Milk: Gives a softer texture
- All-Purpose Flour: Provides the base
- Pure Vanilla Extract: Adds richness
- Baking Powder: Make sure it's not expired
- Kosher Salt: Brings out all flavors
MAKING IT STEP BY STEP
- 1. Initial Setup:
- Heat your oven to 350°F. Get two 9-inch round pans ready with cooking spray and parchment paper circles. Let all ingredients come to room temp. Mix the lemon zest with sugar until it smells amazing.
- 2. Cake Base:
- Mix butter with your lemon sugar until it's really fluffy, about 3-4 minutes. Drop in eggs one by one, mixing well each time. Switch between adding your dry stuff and milk mixture, starting and finishing with the flour.
- 3. Smart Layering:
- Put about 1½ cups of plain batter in each pan first - this trick keeps berries from dropping to the bottom. Mix 1 cup blueberries into what's left and split between pans. Throw the extra berries on top.
- 4. Baking Process:
- Bake for 35-42 minutes until the edges turn golden and a toothpick comes out clean. Let them sit in pans for 15 minutes, then move to a wire rack to cool completely.
- 5. Frosting Creation:
- Whip butter until it's super fluffy. Slowly add your sifted powdered sugar, then mix in lemon juice and vanilla. Keep beating until it's light and fluffy, around 4-5 minutes.

The magic is all in the little things. My baking teacher always told me, "You build an amazing cake from the ground up, one careful step at a time."
Pin it
Storing Your Masterpiece
You can make parts a day ahead: wrap the plain cakes in plastic wrap at room temp and keep frosting in the fridge. When you're ready to put it all together, let the frosting warm up and give it another mix if needed. The finished cake stays good in the fridge for up to 5 days, but always let it come to room temp before eating so it tastes and feels its best.
Tasty Serving Ideas
This cake tastes best at room temp when the lemon flavor really pops and the cake feels super soft. In summer, top it with fresh berries and mint. For fancy occasions, add some edible flowers or sugared lemon slices. It works great as part of a dessert spread with other fruit-based treats.

Fun Twists to Try
Switch things up throughout berry season by trying different fruits - raspberries, blackberries, or a mix of all three work great. Add a hint of almond flavor to the batter, or mix in some orange or lime zest for a different citrus kick. For special events, put some lemon curd or berry jam between the layers. Though you can play around with the recipe, there's something truly summer-perfect about the classic lemon and blueberry combo.
Frequently Asked Questions
- → Can frozen blueberries work?
- Totally! Just toss them in frozen to keep the color from bleeding.
- → Why layer blueberries with batter?
- It stops the berries from falling to the bottom while baking.
- → Can I prep this cake early?
- Absolutely! Bake the layers a day ahead and frost later.
- → Why use room temp ingredients?
- They blend way easier, creating a smoother batter and even texture.
- → Is it freezable?
- Yep! Freeze the plain layers for a month and frost after thawing.