INGREDIENTS
1/2 cup
butter
1/3 cup
granulated sugar
1/4 cup
brown sugar
1 large
egg
1 tsp
vanilla extract
1 1/2 cups
all purpose flour
1 tbsp
corn starch
1/4 tsp
baking powder
1/2 tsp
baking soda
1/4 tsp
salt
1/2 cup
blueberries
1 1/2 tbsps
blueberry jam
3 tbsps
butter
2 tbsps
brown sugar
2 tbsps
granulated sugar
1/3 cup
flour
1 pinch
salt
1 pinch
cinnamon