There’s something about the bright, tender bite of lemon paired with the juicy burst of blueberries that feels like sunshine on a plate — which is exactly why a Lemon Blueberry Cake belongs on your seasonal baking list. This cake combines fresh summer (or late-spring) fruit with a soft, buttery crumb and tangy cream cheese frosting to make a dessert that’s at once nostalgic and elegant. If you love baking from scratch, this recipe is a delightful balance of simple techniques and big flavor. For a slightly different take or serving inspiration, I sometimes glance at a tried-and-true from-scratch lemon blueberry layer cake while planning my variations.
Ingredients & Equipment
Ingredients
- 3 cups cake flour (360 grams)
- 2 teaspoons baking powder
- 1/2 teaspoon baking soda
- 1/2 teaspoon salt
- 3/4 cup buttermilk (180 ml) (room temperature)
- 1/3 cup lemon juice (80 ml) (freshly squeezed)
- 1 cup unsalted butter (226 grams) (softened to room temperature)
- 1 3/4 cups granulated sugar (350 grams)
- 2 tablespoons lemon zest
- 2 teaspoos vanilla extract
- 4 large eggs (room temperature)
- 2 cups blueberries (I recommend using fresh)
- 2 teaspoons cake flour (or all-purpose flour) (for tossing with blueberries)
- 1/2 cup unsalted butter (112 grams) (softened)
- 8 oz brick-style cream cheese (226 grams)
- 1 teaspoon lemon juice (freshly squeezed)
- 3 – 4 cups powdered sugar (330-440 grams) (sifted)
- 1 tablespoon whipping cream (as needed)
- 3/4 cup unsalted butter (168 grams) (softened)
- 12 ounces brick-style cream cheese (340 grams) (full fat)
- 1 1/2 teaspoons lemon juice (freshly squeezed)
- 4 1/2 – 5 1/2 cups powdered sugar (495 – 605 grams) (sifted)
- 1-2 tablespoon whipping cream (as needed)
Notes on ingredients
- The ingredient list includes components for the cake and two different cream cheese frostings (one scaled for a 9×13 and a larger batch for a layer cake). Use the frosting quantities that match the size of your bake.
- Fresh blueberries are recommended for best texture and flavor; frozen can work but expect a little extra moisture and a slightly bluer crumb.
- Use full-fat brick-style cream cheese for a stable, rich frosting.
- Cake flour yields a lighter crumb. If using all-purpose flour, remove 2 tablespoons per cup of AP flour to mimic cake flour, or simply accept a slightly denser texture.
Equipment
- 9×13 inch cake pan (or two 8- or 9-inch round cake pans for a layer cake)
- Rounds of parchment paper (if making layers)
- Electric mixer (stand or hand mixer) — helpful for creaming butter and beating frosting
- Mixing bowls (medium and large)
- Measuring cups and kitchen scale (grams recommended for accuracy)
- Whisk and rubber spatula
- Sifter or fine mesh for powdered sugar
- Toothpick or cake tester
- Cooling rack
- Offset spatula (for smoother frosting) and piping bag (optional)
- Helpful tools: blender (not necessary, but handy for zesting citrus with an appliance), baking thermometer (to check oven accuracy), and an oven light to monitor browning
If you want to explore other lemon-baked treats for inspiration, try these mini ideas like the mini lemon cakes with lavender glaze.
Step-by-Step Instructions (with tips)
Preparation
- Preheat the oven to 350°F (180°C). Grease and flour a 9×13 inch cake pan. For a layer cake, line the bottom of the cake tins with rounds of parchment paper, then grease and flour the sides of the pans. This prevents sticking and helps release the cakes cleanly.
- In a medium bowl, sift together the 3 cups cake flour, 2 teaspoons baking powder, 1/2 teaspoon baking soda, and 1/2 teaspoon salt. Whisk together and set aside. Sifting helps aerate the flour and ensures even distribution of the leaveners.
- Combine the 3/4 cup buttermilk and 1/3 cup freshly squeezed lemon juice. Whisk with a fork and set aside. The acid in the lemon juice slightly thickens and tangs the buttermilk, which boosts flavor and tenderizes the crumb.
Make the cake batter
4. In a large bowl, beat together 1 cup softened unsalted butter, 1 3/4 cups granulated sugar, and 2 tablespoons lemon zest until fluffy — about 2–3 minutes on medium speed. Scrape the sides occasionally so everything mixes evenly. The creaming step traps air for a light cake.
5. Add in 2 teaspoons vanilla extract and beat in the 4 large eggs one at a time. Turn off the mixer and scrape down the sides of the bowl after each addition to keep the batter smooth and prevent pockets of unmixed egg.
6. With the mixer on low speed, beat in about one-third of the flour mixture. Then mix in about half of the milk-and-lemon mixture. Turn off the mixer and scrape down the sides and bottom of the bowl. Repeat: add another third of the flour, then the rest of the milk-and-lemon, and finally the last third of the flour. Do not overmix — stop when the batter is uniform. Overmixing develops gluten and can make the cake tough.
7. Toss the 2 cups of blueberries with 2 teaspoons of flour (this prevents them from sinking). Gently fold the blueberries into the batter with a spatula or rubber spoon, taking care not to pop them. If using frozen berries, fold straight from the freezer and expect some bluish streaking.
Baking
8. Pour the batter into the prepared pan(s), smoothing the top with a spatula. Tap the pan gently on the counter to release any large air bubbles.
9. Bake for 30–35 minutes for a 9×13 inch pan, or about 25–30 minutes for layer cakes. The top should look set and a toothpick inserted into the center comes out clean. If you press gently on the top, it should feel firm and slightly springy, not gooey.
10. Cool the cakes in the pan. If making a layer cake, be very careful when handling the pans — do not try to invert them while hot. Let the layers cool 10–15 minutes in the pan, then run a thin knife around the edge and invert onto a cooling rack to finish cooling.
Cream Cheese Frosting (same process for a 9×13 inch and a layer cake)
11. For a 9×13 cake: In a medium bowl, beat 1/2 cup softened butter with 8 oz (226 g) brick-style cream cheese until smooth. Add 1 teaspoon lemon juice, then slowly add 3 to 4 cups sifted powdered sugar until you reach a spreadable consistency. Add up to 1 tablespoon whipping cream if needed to loosen. Beat until light and creamy.
12. For a layer cake or if you want extra frosting: In a large bowl, beat 3/4 cup softened butter with 12 oz (340 g) cream cheese until smooth. Add 1 1/2 teaspoons lemon juice. Gradually add 4 1/2 to 5 1/2 cups sifted powdered sugar until desired sweetness and thickness are reached. Add 1–2 tablespoons whipping cream as needed for texture.
Decorating
13. If making a layer cake, level the layers with a serrated knife if needed. Place the first layer on a cake board or plate, spread a generous layer of frosting, add the second layer, crumb coat (a thin layer of frosting to seal crumbs), chill 15–20 minutes, then finish with a final thicker coat. Smooth with an offset spatula.
14. Garnish ideas: fresh lemon slices, extra lemon zest, a scatter of fresh blueberries, or a few mint leaves for color. For a rustic look, leave the sides lightly frosted ("naked cake" style) so the blueberry-streaked crumb peeks through.
15. Tip: If frosting becomes too soft while working, chill the cake briefly (10–15 minutes) then continue. If frosting is too stiff, add a teaspoon of cream at a time until spreadable.
Variations & Flavor Suggestions
- Roasting blueberries: For a more concentrated blueberry flavor, roast blueberries tossed with a tablespoon of sugar at 375°F (190°C) for 8–10 minutes, cool, and fold into the batter. Roasting reduces moisture and concentrates sweetness.
- Lemon glaze: Instead of cream cheese frosting, whisk powdered sugar with lemon juice for a thin glaze that soaks the top slightly and gives a more delicate finish.
- Almond twist: Replace 1/2 teaspoon of vanilla with almond extract for a subtle nutty note that pairs beautifully with blueberries.
- Layer swaps: Turn this into cupcakes (bake 18–22 minutes) or a bundt cake (bake 45–60 minutes) — adjust bake time and test with a toothpick.
- Buttermilk alternative: If you don’t have buttermilk, make a quick substitute by stirring 1 tablespoon lemon juice into 3/4 cup milk and letting it sit 5–10 minutes — similar to the buttermilk-lemon mixture used here. If you want more inspiration using buttermilk and blueberries together, see this blueberry buttermilk pancake casserole for a flavor cousin.
Storage, Freezing & Make-Ahead Tips
Storing leftovers
- Room temperature: Store frosted cake loosely covered at room temperature for up to 2 days (if your kitchen is cool). Cream cheese frosting benefits from refrigeration, but chilling can firm it up and slightly mute the lemon aroma.
- Refrigerator: Store in an airtight cake container or under a cake dome for 4–5 days. Bring slices to room temperature before serving (15–30 minutes) for the best texture and flavor.
Freezing
- Unfrosted cake layers: Wrap tightly in plastic wrap and then foil. Freeze up to 3 months. Thaw overnight in the refrigerator, then bring to room temperature and frost.
- Frosted cake slices: Individual slices can be frozen double-wrapped in plastic and foil for up to 2 months. Thaw in the fridge overnight.
- Tip: If freezing frosting, use it within 1 month. Re-whip briefly after thawing to restore creaminess.
Make-ahead
- Bake the cake a day ahead and refrigerate unfrosted layers. Frost on the day you plan to serve for the freshest appearance.
- Prepare the frosting a few hours ahead and keep chilled; re-whip lightly if it separates.
Portioning advice
- A 9×13 cake serves 12–15 depending on slice size. A two-layer 8–9 inch cake serves 10–14.
How to Use / Serve This Dish
Serving ideas
- Brunch star: Slice this cake and serve with a pot of coffee or a citrusy iced tea for a bright brunch centerpiece.
- Dessert course: Pair with a scoop of vanilla bean ice cream or a drizzle of lemon curd for extra indulgence.
- Picnic friendly: For outdoor gatherings, consider using a sturdy glaze instead of whipped frosting to prevent melting in the heat.
- Party platter: Cut into small squares and arrange on a platter with fresh berries and mint for a pretty, shareable dessert.
Creative variations
- Turn slices into shortcake by spooning lightly sweetened whipped cream and extra berries between cake layers.
- Use leftover crumbs as a streusel atop Greek yogurt or frozen dessert for a crunchy lemon-blueberry twist.
- Combine with other cheesecake-style desserts for a mixed dessert table — this cake partners nicely with berry-themed sweets like a berry cheesecake for variety.
FAQ
Q: Can I use frozen blueberries instead of fresh?
A: Yes. Toss frozen blueberries with the 2 teaspoons of flour and fold them into the batter straight from the freezer. They may bleed into the batter slightly and add moisture, so reduce any additional liquid a touch only if your batter seems very loose.
Q: How long will this cake last with cream cheese frosting?
A: Properly stored in the refrigerator, the frosted cake will keep for 4–5 days. Allow slices to come to room temperature before serving for best flavor.
Q: Can I make this gluten-free?
A: You can substitute a 1:1 gluten-free flour blend designed for baking in place of the cake flour, but results vary by blend. You may want to add 1/2 teaspoon xanthan gum if your blend doesn’t contain it to help structure.
Q: My frosting is too runny — how do I fix it?
A: Chill the frosting 15–30 minutes and then re-whip. If it’s still soft, gradually add more sifted powdered sugar a tablespoon at a time until it firms. For overly sweet control, chill the cake so the frosting sets without over-sugaring.
Conclusion
Lemon Blueberry Cake captures the best seasonal flavors — bright lemon, seasonal blueberries, and a tender from-scratch crumb that makes any afternoon feel celebratory. Whether you bake it for a picnic, a family dessert, or a special brunch, it’s a comforting and crowd-pleasing recipe that rewards a little care with big smiles. For more inspiration on variations and professional-tested techniques, I like to compare notes with recipes like Lemon Blueberry Layer Cake – Sally’s Baking Addiction and a fun tutorial from Lemon Blueberry Cake – Sugar Spun Run. Give this recipe a try, and if you love the result, share a photo or pass the slice along — good baking tastes even better when shared.
Lemon Blueberry Cake
Ingredients
Method
- Preheat the oven to 350°F (180°C). Grease and flour a 9x13 inch cake pan.
- In a medium bowl, sift together the cake flour, baking powder, baking soda, and salt. Whisk together and set aside.
- Combine the buttermilk and lemon juice. Whisk with a fork and set aside.
- In a large bowl, beat together the unsalted butter, granulated sugar, and lemon zest until fluffy.
- Add in vanilla extract and beat in the eggs one at a time.
- With the mixer on low speed, alternately add in the flour mixture and the milk-and-lemon mixture, mixing until just incorporated.
- Toss the blueberries with the flour and gently fold into the batter.
- Pour the batter into the prepared pan(s) and bake for 30–35 minutes or until a toothpick comes out clean.
- Cool the cakes in the pan for 10–15 minutes, then invert onto a cooling rack.
- Beat 1/2 cup butter and cream cheese until smooth, then add lemon juice and powdered sugar to reach a spreadable consistency.
- For a layer cake, follow the same process for additional frosting with 3/4 cup butter and 12 oz cream cheese.
- If making a layer cake, level the layers, frost, and garnish as desired.
