INGREDIENTS
1 cup
flour
1/2 cup
sugar
1/4 cup
cocoa powder
1/4 cup
mini chocolate chips (optional)
1/2 tsp
baking soda
1/4 tsp
salt
1/2 tsp
vanilla extract
1
large egg
6 tbsp
sour cream
1/4 cup
milk
1/4 cup
vegetable oil
1 1/2 cups
powdered sugar
1/4 cup
milk
1 tsp
vanilla