INGREDIENTS
1 stick
unsalted butter, room temperature
2 tbsp
oil
1 cup
granulated sugar
2
large eggs, room temperature
1 cup
all-purpose flour
2 tsp
fresh lemon zest
1/2 cup
sour cream
1/2 tsp
baking powder
1 tsp
pure vanilla extract
2 tsp
lemon extract
8 oz
fresh blueberries tossed in 1 tablespoon flour
2 tbsp
granulated sugar
3 tbsp
packed brown sugar
1/4 tsp
ground cinnamon
salt
3/4 cup
all-purpose flour
4 tbsp
unsalted butter melted