Ingredients:
½ cup butter
¾ cup granulated sugar
¼ cup brown sugar
1 teaspoon vanilla
2 eggs
1 cup sour cream
3 cups flour
1 teaspoon baking soda
1 teaspoon baking powder
1 ½ cups fresh blueberries, divided
Streusel filling
5 tablespoons salted butter, melted
¾ cup brown sugar
1 ½ teaspoons cinnamon