Ingredients
Streusel
1/2 cup flour
1/2 cup packed brown sugar
3/4 teaspoon cinnamon
4 tbsp butter, melted
Coffee Cake
1/2 cup sugar
6 tbsp salted butter, room temperature
1/4 cup sour cream
1/4 cup milk
1 egg
1 tsp vanilla extract
1 1/4 tsp baking powder
1 cup all-purpose flour
1 1/4 cups blueberries
Glaze
3/4 cup powdered sugar
1-2 tbsp milk
Preparation