mama's chocolate cake

Ingredients For mama's chocolate cake

• 3 c

  packed brown sugar
• 1 c

  softened butter
• 4

  eggs
• 2 tsp

  vanilla
• 2 2/3 c

  all purpose flour
• 3/4 c

  cocoa
• 1 Tbsp

  baking soda
• 1/2 tsp

  salt
• 1 1/3 c

  sour cream
• 1 1/3 c

  boiling water
• FROSTING
• 1/2 c

  butter
• 3 oz

  unsweetened chocolate
• 3 oz

  semisweet chocolate
• 5 c

  powdered sugar
• 1 c

  sour cream
• 2 tsp

  vanilla