INGREDIENTS
2 1/4 cups
Blueberries, fresh
2
Eggs, large
1 tbsp
flour plus
3 tsp
Baking powder
1 tsp
Cinnamon
1
Crumb topping
1 cup
Flour
2/3 cup
Granulated sugar
1
Powdered sugar optional
1/2 tsp
Salt
1 cup
Sugar
1 tsp
Vanilla
1/2 cup
Vegetable oil
1/2 stick
Butter
1 cup
Sour cream