Blueberry Sour Cream Coffee Cake

 

Ingredients:

2 cups all-purpose flour

1/2 cup granulated sugar

2 teaspoons baking powder

1/2 teaspoon baking soda

1/4 teaspoon salt

1/2 cup unsalted butter, at room temperature

1/2 cup sour cream

2 eggs

1 teaspoon vanilla extract

1 cup fresh blueberries

Topping:

1/2 cup all-purpose flour

1/2 cup granulated sugar

1/2 teaspoon ground cinnamon

1/4 cup unsalted butter, at room temperature