Chocolate Layer Cake

Ingredients

• 4 ounces unsweetened chocolate chopped
• 8 Tbsp butter
• 2 cups cake flour
• 2 tsp baking soda
• 1/2 tsp salt
• 2 cups tightly packed brown sugar
• 4 Eggs
• 1 tsp vanilla
• 1 cup water
• 1 cup sour cream