A moist and tender coffee cake bursting with fresh blueberries and swirled with a luscious cream cheese filling, perfect for breakfast or dessert.

2 cups all-purpose flour

1 cup granulated sugar

1/2 cup unsalted butter, softened

1 cup sour cream

2 large eggs

1 teaspoon baking powder

1/2 teaspoon baking soda

1/4 teaspoon salt

1 teaspoon vanilla extract

1 1/2 cups fresh blueberries

For the cream cheese swirl:

8 oz cream cheese, softened

1/4 cup granulated sugar

1 large egg

1 teaspoon vanilla extract

Cook Mode Prevent your screen from going dark

Preheat the oven to 350°F (175°C). Grease and flour a 9-inch square baking pan.
In a medium bowl, whisk together the flour, baking powder, baking soda, and salt. Set aside.
In a large bowl, beat the softened butter and sugar until light and fluffy. Add the eggs one at a time, mixing well after each addition.
Stir in the vanilla extract.
Alternately add the flour mixture and sour cream to the butter mixture, beginning and ending with the flour mixture. Mix until just combined. Gently fold in the blueberries.
In a separate bowl, beat the cream cheese, sugar, egg, and vanilla extract until smooth and creamy.
Pour half of the batter into the prepared pan. Dollop half of the cream cheese mixture on top, then gently swirl with a knife or skewer. Repeat with the remaining batter and cream cheese mixture.
Bake for 45-50 minutes, or until a toothpick inserted in the center comes out clean.
Allow to cool before slicing and serving.

Frozen blueberries can be used without thawing to prevent watery batter.

Substitute Greek yogurt or buttermilk for sour cream if needed.

For gluten-free, use a gluten-free baking flour blend.

Add nuts like walnuts or pecans for crunch.

Try a cinnamon-sugar streusel topping for extra sweetness.

Store leftovers in an airtight container at room temperature for up to 2 days or refrigerate up to 5 days.

Reheat slices in microwave for 15-20 seconds or oven at 300°F for 10 minutes.

Prepare batter a day ahead and refrigerate for make-ahead convenience.