INGREDIENTS
1 cup
brown sugar
6 tbsp
butter, soft
1
egg
1/2 tsp
vanilla extract
1/4 tsp
salt
1/2 tsp
cinnamon
1/2 tsp
baking powder
1/2 tsp
baking soda
1 1/4 cups
all-purpose flour
1 cup
quick cooking oats
2 tbsp
hot water
For the filling:
3/4 cup
butter, softened
3 cups
powdered sugar
3 tbsp
heavy cream
1 1/2 tsp
pure vanilla extract