INGREDIENTS
1
Egg, large
1 3/4 cups
All-purpose flour
1/2 cup
Baking cocoa
1 tsp
Baking powder
1/2 tsp
Baking soda
1/2 cup
Brown sugar, packed
1 cup
Chocolate chips, semisweet
1/4 tsp
Salt
3/4 cup
Sugar
1 tsp
Vanilla extract
1/2 cup
Butter
1/2 cup
Sour cream
1/2 cup
Vanilla or white chips