INGREDIENTS
1 cup
buttermilk
1/2 cup
brown sugar
1 tsp
baking soda
1/2 tsp
salt
1/2 tsp
vanilla
1
egg
3 cups
flour plus more for dusting
Filling:
2 tbsp
butter, room temperature
2/3 cup
brown sugar
3/4 tsp
ground cinnamon
Icing:
1 cup
powdered sugar
2 tbsp
milk or cream