INGREDIENTS
3
Eggs, large
2 2/3 cups
All purpose flour
2 1/4 tsp
Baking soda
3 oz
Chocolate, unsweetened
1/2 tsp
Cinnamon, ground
1/3 cup
Cocoa powder, unsweetened
3/4 tsp
Salt
2 cups
Sugar
1 1/2 tsp
Vanilla extract
1 1/2 sticks
Butter, unsalted
1 1/3 cups
Sour cream