INGREDIENTS
For the cake:
2 1/2 cups
sweet potato
1 cup
vegetable oil
4
large eggs
2
egg whites
1 tbsp
vanilla extract
2 cups
sugar
3/4 cup
sour cream
1/2 cup
cocoa powder
2 1/2 cups
flour
1 tbsp
cinnamon
1 tsp
salt
1 tsp
baking soda
1/2 tsp
baking powder
For the frosting:
5 sticks
unsalted butter
8 cups
powdered sugar
1/2 cup
brown sugar
1 tbsp
cinnamon
3 tbsp
heavy whipping cream
2 tbsp
maple syrup
1/4 cup
chocolate chips
2 tbsp
heavy cream