INGREDIENTS
1/2 cup all purpose flour
1/4 cup
double dutch cocoa powder
1/2 tsp
baking powder
1/4 tsp
baking soda
1/4 tsp
salt
1
large egg
1/2 cup
granulated sugar
1/4 cup
sour cream
2 tbsp
vegetable oil
2 tsp
vanilla extract
1 stick
butter, room temperature
1 tsp
vanilla extract
2 tbsp
double dutch cocoa powder
1 1/2 cups
powdered sugar
1 tbsp
milk, as needed