admin1 Blueberry Sour Cream Cake is a soft, buttery, and deliciously moist homemade cake filled with juicy blueberries and finished with a light dusting of powdered sugar. Sour cream gives the cake a tender crumb and subtle tanginess, while fresh blueberries add natural sweetness and little bursts of fruity flavor in every bite.
Whether you’re preparing a weekend dessert, hosting afternoon tea, or looking for a simple homemade treat to share with family, this easy blueberry cake is a wonderful choice. It uses everyday baking ingredients, comes together without complicated techniques, and tastes delicious served warm or chilled.
Recipe Details
Prep time
15 minutes
Bake time
40–50 minutes
Oven temperature
350°F (175°C)
Servings
9–12 slices
Total time
About 1 hour
Ingredients
For the Cake
- 2 cups (250 g) all-purpose flour
- 1½ cups (300 g) granulated sugar
- ½ cup (113 g) unsalted butter, softened
- 2 large eggs, at room temperature
- 1 cup (240 g) full-fat sour cream
- 2 cups (300 g) fresh blueberries
- 2 teaspoons vanilla extract
- 2 teaspoons baking powder
- ½ teaspoon baking soda
- ¼ teaspoon salt
- 1 teaspoon finely grated lemon zest, optional
For the Topping
- 1 tablespoon powdered sugar
- ½ cup fresh blueberries, optional for serving
- Whipped cream or vanilla ice cream, optional
Ingredient tip: Frozen blueberries work well too. Use them straight from the freezer rather than thawing them first, which helps reduce excess moisture and purple streaks in the batter.
Instructions
Step 1: Preheat the Oven
Preheat your oven to 350°F (175°C). Grease an 8-inch or 9-inch square baking pan, then line the bottom with parchment paper.
Allow the butter, eggs, and sour cream to reach room temperature before mixing. This helps the ingredients blend together smoothly and creates a more even cake texture.
Step 2: Prepare the Dry Ingredients
In a medium bowl, whisk together the flour, baking powder, baking soda, and salt.
Mixing the dry ingredients separately helps distribute the raising agents evenly throughout the flour, allowing the cake to rise more consistently.
If you are using lemon zest, you can add it to the sugar in the next step for a fresh citrus aroma.
Step 3: Cream the Butter and Sugar
Place the softened butter and granulated sugar in a large mixing bowl. Beat with an electric mixer for approximately 3–4 minutes, until the mixture looks pale and fluffy.
Scrape the sides of the bowl as needed. Proper creaming incorporates air into the batter, helping produce a light, tender cake rather than a heavy one.
Step 4: Add the Eggs and Vanilla
Add the eggs one at a time, beating well after each addition. Stir in the vanilla extract and optional lemon zest.
If the mixture looks slightly curdled, don’t worry. Adding the dry ingredients gradually will usually bring the batter back together.
Step 5: Add the Sour Cream and Flour
Add about one-third of the flour mixture to the butter mixture and mix on low speed. Add half of the sour cream, followed by another portion of the flour mixture.
Repeat with the remaining sour cream and flour, finishing with the dry ingredients. Mix just until combined.
The batter should be thick and creamy. Avoid overmixing, because excessive mixing can develop gluten and make the finished cake less tender.
Step 6: Fold in the Blueberries
Place the blueberries in a small bowl and toss them with about 1 teaspoon of flour taken from the measured amount, if desired.
Gently fold the blueberries into the batter using a spatula. Work carefully to avoid crushing the fruit.
Spread the batter evenly in the prepared baking pan and smooth the top. Scatter a few additional blueberries over the surface for an attractive finish.
Step 7: Bake the Cake
Place the pan in the preheated oven and bake for 40–50 minutes.
Begin checking around 40 minutes. The cake should be lightly golden, and a toothpick inserted into the center should come out clean or with a few moist crumbs. Avoid testing directly inside a blueberry, as its juice can make the toothpick appear wet.
If the top is browning too quickly before the center is done, loosely cover it with foil for the remaining baking time.
Step 8: Cool and Serve
Remove the cake from the oven and let it cool in the pan for 15–20 minutes. Transfer it to a wire rack if you want it to cool completely before cutting.
Once cooled, dust the top with powdered sugar. Serve plain or with whipped cream, fresh berries, or a scoop of vanilla ice cream.
Tips for the Best Blueberry Sour Cream Cake
- Use full-fat sour cream: It adds moisture and richness while giving the cake a pleasant tang.
- Measure flour carefully: Too much flour can make the cake dry. For best results, weigh it or spoon it into the measuring cup and level it off.
- Don’t overmix: Once the flour is added, mix only until no dry streaks remain.
- Coat the blueberries lightly: A small amount of flour can help distribute the berries, although it cannot guarantee that none will sink.
- Choose firm blueberries: Fresh, firm berries hold their shape better during baking.
- Allow time to cool: The crumb becomes more stable as the cake cools, making cleaner slices easier.
- Check your oven: Baking time varies depending on the pan material, pan size, and individual oven.
Delicious Variations
Blueberry Lemon Sour Cream Cake
Add 1–2 teaspoons of lemon zest to the batter and drizzle the cooled cake with a simple lemon glaze made from powdered sugar and lemon juice. The citrus brightens the blueberry flavor.
Blueberry Sour Cream Coffee Cake
Mix ½ cup flour, ¼ cup brown sugar, ½ teaspoon cinnamon, and 3 tablespoons cold butter until crumbly. Sprinkle the mixture over the batter before baking for a sweet, crunchy streusel topping.
Blueberry Cream Cheese Cake
Add small spoonfuls of sweetened cream cheese over the batter and gently swirl them in before baking. This creates creamy pockets throughout the cake.
Mixed Berry Sour Cream Cake
Replace some of the blueberries with raspberries or chopped strawberries. Keep the total fruit quantity around 2 cups and drain any especially juicy fruit well.
Almond Blueberry Cake
Add ¼–½ teaspoon almond extract and sprinkle sliced almonds on top before baking. Almond flavor complements blueberries beautifully.
What to Serve with Blueberry Sour Cream Cake
This cake is delicious with freshly brewed coffee, black tea, or a glass of cold milk. For dessert, serve it with whipped cream, vanilla ice cream, or a spoonful of blueberry compote.
For a brunch table, pair it with fresh fruit, yogurt, and scrambled eggs. Its gentle sweetness also makes it a lovely addition to afternoon tea or a casual family gathering.
Storage and Freezing
Room temperature: Store the completely cooled cake in an airtight container for up to 2 days in a cool environment.
Refrigerator: Because the cake contains sour cream and moist fruit, refrigerate it in an airtight container if keeping it longer or if your kitchen is warm. It will generally keep well for up to 5 days.
Freezer: Cut the cooled cake into individual slices and wrap them securely. Freeze for up to 3 months for best quality.
Thawing: Allow frozen slices to thaw in the refrigerator or at room temperature. Warm a slice briefly in the microwave if you prefer a softer texture.
Nutrition Information
Estimated nutrition per serving, assuming 12 slices and excluding optional toppings:
| Nutrient | Approximate amount |
|---|---|
| Calories | 285 kcal |
| Protein | 4 g |
| Carbohydrates | 41 g |
| Total fat | 12 g |
| Saturated fat | 7 g |
| Sugar | 25 g |
| Fiber | 1–2 g |
| Sodium | 180 mg |
Nutrition values are estimates and will vary with ingredient brands, pan size, and serving portions.
Frequently Asked Questions
Can I use frozen blueberries?
Yes. Add frozen blueberries directly to the batter without thawing them. They may increase the baking time slightly, so check the center carefully before removing the cake from the oven.
Why did my blueberry cake turn purple?
Blueberries naturally release juice when crushed or mixed too vigorously. Fold them in gently, and use firm berries to minimize purple streaks.
Can I substitute Greek yogurt for sour cream?
Yes. Plain, full-fat Greek yogurt can generally replace sour cream in the same quantity. The flavor and texture may be slightly different, but the cake should still be moist.
Why is my cake dense?
Common reasons include too much flour, overmixing, expired baking powder or baking soda, or butter that wasn’t creamed adequately with the sugar.
Can I bake this recipe in a loaf pan?
Yes, but a loaf pan is deeper than a square pan, so the cake may need longer to bake. Fill the pan no more than about two-thirds full, and check for doneness with a toothpick.
Can I make it less sweet?
You can modestly reduce the sugar, although sugar also contributes to moisture, tenderness, and browning. Reducing it too much may change the cake’s texture.
