INGREDIENTS
1 cup
granulated sugar
3/4 cup
flour
1/4 cup
unsweetened cocoa powder
3/4 tsp
baking powder
3/4 tsp
baking soda
1/2 tsp
salt
1 large
egg
1/2 cup
sour cream
1/4 cup
canola oil
1 tbsp
vanilla extract
1/2 cup
water
1 serving
chocolate
2 sticks
unsalted butter
2 cups
powdered sugar
1 tsp
vanilla extract
2 tbsp
heavy cream
1/2 cup
unsweetened cocoa powder
2 tbsp
chocolate