Blueberry Sour Cream Coffee Cake

Why You’ll Love This Recipe

This coffee cake is the perfect blend of comforting flavors and textures. The tender cake base pairs beautifully with bursts of fresh blueberries and a crunchy cinnamon crumble topping.

The sour cream gives the cake a rich, moist texture that stays soft for days. The crumb topping adds a delightful contrast, while the simple icing drizzle brings just the right amount of sweetness.

It’s also a great recipe for gatherings. Because it’s baked in a large pan, it can easily serve a crowd, making it ideal for brunch tables, holidays, or family breakfasts.

Ingredients

(Tip: You'll find the full list of ingredients and measurements in the recipe card below.)

For the crumb topping

1 cup flour
¾ cup brown sugar
1 teaspoon cinnamon
½ cup butter (softened)

For the coffee cake batter

2 ¾ cups flour
1 tablespoon baking powder
½ teaspoon salt
1 cup sugar
½ cup brown sugar
1 cup sour cream
½ cup milk
3 eggs
1 tablespoon vanilla
1 cup butter (softened)
3 cups blueberries

For the icing

½ cup powdered sugar
2–3 teaspoons water or milk

Directions

1. Make the crumb topping. In a small bowl, combine the flour, brown sugar, and cinnamon.

2. Add the softened butter and mix with a fork until the mixture resembles damp sand with small pea-sized crumbs. Set aside.

3. Preheat the oven to 350°F (175°C). Grease a 9×13-inch baking dish with cooking spray.

4. In a large bowl, combine the flour, baking powder, salt, sugar, and brown sugar.

5. In another bowl, whisk together the sour cream, milk, eggs, and vanilla.

6. Add the softened butter to the dry ingredients and mix until the mixture becomes crumbly.

7. Pour the wet ingredients into the dry mixture and mix until a smooth batter forms.

8. Pour a little more than half of the batter into the prepared baking dish and spread evenly.

9. Sprinkle the blueberries evenly over the batter.

10. Spoon the remaining batter over the blueberries and gently spread it out.

11. Sprinkle the prepared crumb topping evenly over the cake and lightly press it into the batter.

12. Bake for 50–60 minutes, or until a toothpick inserted into the center comes out clean. If the top browns too quickly, loosely cover the pan with foil for the remaining baking time.

13. Prepare the icing by mixing powdered sugar with water or milk until smooth.

14. Drizzle the icing over the warm coffee cake.

15. Allow the cake to cool slightly before slicing and serving.

Servings and timing

Servings: 24 slices

Prep time: 20 minutes
Cook time: 50–60 minutes
Total time: about 1 hour 10 minutes

Variations

You can easily customize this coffee cake depending on your preferences or what ingredients you have available.

Mixed berry version
Replace half of the blueberries with raspberries, blackberries, or chopped strawberries for a colorful berry blend.

Lemon blueberry coffee cake
Add 1 tablespoon of lemon zest to the batter for a bright citrus flavor that pairs beautifully with blueberries.

Nutty crumb topping
Mix ½ cup chopped pecans or walnuts into the crumb topping for added crunch and flavor.

Frozen blueberries
Frozen blueberries work well in this recipe. Add them straight from the freezer without thawing to prevent excess moisture.

Cream cheese swirl
Add dollops of sweetened cream cheese between the batter layers for a richer dessert-style coffee cake.

Storage/Reheating

Room temperature
Store the coffee cake in an airtight container at room temperature for up to 2 days.

Refrigerator
For longer storage, keep the cake in the refrigerator for up to 5 days. Cover it well to maintain moisture.

Freezer
You can freeze slices individually wrapped in plastic wrap and placed in a freezer-safe container for up to 3 months.

Reheating
Warm individual slices in the microwave for 15–20 seconds, or heat larger portions in a 300°F oven for about 10 minutes.

FAQs

Can I use frozen blueberries instead of fresh?

Yes, frozen blueberries work well. Use them directly from the freezer without thawing to avoid extra moisture in the batter.

Why does sour cream make the cake better?

Sour cream adds richness and moisture while giving the cake a soft, tender texture.

Can I make this coffee cake ahead of time?

Yes. It can be baked a day in advance and stored covered at room temperature or in the refrigerator.

What size pan should I use?

A 9×13-inch baking dish works best for this recipe and ensures even baking.

How do I know when the coffee cake is done?

Insert a toothpick into the center. If it comes out clean or with just a few crumbs, the cake is ready.

Can I reduce the sugar in this recipe?

You can slightly reduce the sugar, but it may affect the texture and sweetness of the cake.

Can I add nuts to the recipe?

Yes, chopped walnuts or pecans work well in the crumb topping or sprinkled between the layers.

Why is my crumb topping melting into the cake?

This can happen if the butter in the topping is too soft. Make sure the mixture forms crumb-like pieces before adding it.

Can I turn this into muffins?

Yes. Divide the batter into muffin tins, add blueberries and crumb topping, and bake for about 20–25 minutes.

What can I serve with coffee cake?

It pairs wonderfully with coffee, tea, or a glass of milk and is perfect for breakfast or brunch.

Conclusion

Blueberry Sour Cream Coffee Cake is a classic baked treat that’s both comforting and impressive. With its moist cake, bursts of blueberries, buttery crumb topping, and sweet icing drizzle, it’s the perfect addition to any breakfast table, brunch gathering, or dessert spread. Easy to prepare and perfect for sharing, this coffee cake is sure to become a favorite in your baking collection.