INGREDIENTS
1
Egg
1/2 cup
Blueberry jam
2 1/4 cups
All purpose flour
1 1/2 tsp
Baking powder
2 1/2 tsp
Cinnamon, ground
3/4 cup
Powdered sugar
1 tsp
Salt
1 1/4 cups
Sugar
2 1/2 tsp
Vanilla
3
unsalted butter (168g), unsalted
1 tbsp
Milk
1/4 cup
Sour cream