INGREDIENTS
Crust:
1/2 cup
butter, melted and cooled to room temperature
1/2 cup
light brown sugar
1 1/2 cups
all purpose flour
1/2 tsp
baking soda
1/2 tsp
baking powder
1/4 tsp
salt
Filling:
2 cups
fresh blueberries
3/4 cup
sugar
2 tsp
cornstarch
1 tbsp
lemon juice
1/2 cup
sour cream
1/4 cup
granulated sugar
1 tbsp
all purpose flour
1
egg
1/2 tsp
vanilla extract