Blueberry Streusel Coffee Cake

The warm aroma of freshly baked coffee cake fills the kitchen, inviting family and friends to gather around. Blueberry Streusel Coffee Cake is a delightful treat that takes about an hour to prepare and bake. Its fluffy texture combined with the sweet, crunchy streusel topping is a winning combination that never fails to impress.

This recipe is perfect for brunch, a cozy afternoon tea, or whenever you crave a sweet indulgence. You can prepare the streusel ahead of time and store it in the fridge for easy assembly when you’re ready to bake.

Why You’ll Love This Recipe

• The streusel topping adds a delightful crunch to the moist cake.
• It’s loaded with juicy blueberries that burst with flavor in each bite.
• Easy to prepare with simple ingredients you likely already have.
• Perfect for sharing at gatherings or enjoying on a quiet morning.

What You’ll Need

Gather these ingredients to create your delicious coffee cake.

For the Streusel

• 1/2 cup (65g) all-purpose flour
• 1/2 cup (112g) packed brown sugar
• 3/4 tsp ground cinnamon
• 1/4 cup (56g) unsalted butter, melted
• Pinch of salt

For the Cake Batter

• 1 cup (130g) all-purpose flour
• 1 1/4 tsp baking powder
• 1/4 tsp salt
• 1/2 cup (104g) sugar
• 6 tbsp (84g) unsalted butter, room temperature
• 1/4 cup (58g) sour cream
• 1/4 cup (60ml) milk
• 1 large egg
• 1 tsp vanilla extract
• 1 1/4 cups blueberries

For the Glaze

• 3/4 cup (86g) powdered sugar
• 1-2 tbsp (15-30ml) milk
• 1/4 tsp vanilla extract

Make sure butter is at room temperature for easy creaming.

Substitutions & Swaps

• Use Greek yogurt for sour cream.
• Substitute almond milk for regular milk.
• Light brown sugar can replace dark brown sugar.
• Frozen blueberries work in place of fresh.

How to Make It

Follow these simple steps to create your coffee cake masterpiece.

Preheat Oven

Preheat oven to 350 degrees. Prepare a 9-inch cake pan with a circle of parchment paper in the bottom and grease the sides.

Prepare Streusel

In a medium-sized bowl, add flour, brown sugar, cinnamon, melted butter, and salt. Mix with a fork until all ingredients are incorporated and crumbly. Set aside.

Combine Dry Ingredients

In a medium bowl, combine the flour, baking powder, and salt. Set aside.

Cream Sugar and Butter

In a large mixer bowl, add sugar and butter. Beat together until light in color and fluffy, approximately 3-4 minutes. Do not skimp on the creaming time.

Mix in Sour Cream

Add sour cream to the mixture and mix just until well combined.

Incorporate Milk

Add milk and mix just until well combined.

Add Egg and Vanilla

Incorporate the egg and vanilla extract into the batter and mix until just combined.

Combine Wet and Dry Ingredients

Add the dry ingredients to the batter and mix until well combined.

Spread Batter

Spread half of the cake batter into the bottom of the cake pan. The batter will be thick and the layer will be thin.

Add Streusel and Blueberries

Sprinkle about half of the streusel mixture evenly over the cake batter, then sprinkle half of the blueberries on top.

Add Remaining Batter

Drop spoonfuls of the remaining cake batter over the streusel and blueberries, and carefully spread into an even layer.

Top with Streusel and Blueberries

Sprinkle the remaining streusel and blueberries over the top of the cake batter.

Bake the Cake

Bake for 32-38 minutes, or until a toothpick inserted into the center comes out with a few crumbs.

Cool the Cake

Remove the cake from the oven and allow it to cool in the pan for about 20 minutes. Then, remove it to a cooling rack to finish cooling.

Prepare Glaze

In a small bowl, combine powdered sugar, milk, and vanilla extract. Whisk until smooth and adjust consistency as necessary.

Drizzle and Serve

Drizzle the glaze over the cooled coffee cake and sprinkle a few more blueberries over the top, then serve.

How to Store It

Fridge: Store in an airtight container for up to 5 days.
Freezer: Yes, wrap tightly for up to 3 months.
Reheat: Microwave slices for about 20 seconds.

Tips for Best Results

• Ensure butter is properly creamed for a light texture.
• Don’t overmix the batter after adding dry ingredients to keep it tender.
• For extra flavor, toss blueberries with a bit of flour before adding.
• Let the cake cool completely before glazing for a neater finish.

Serving Suggestions

• Serve with a fresh cup of coffee for a delightful breakfast.
• Pair with vanilla ice cream for a delicious dessert.
• Great for serving at brunch or holiday gatherings.