Homemade Hostess Chocolate Cupcakes

Bahan-bahan (21 porsi)

• 1 cup butter ((2 sticks))
• 1 cup water
• 1/2 cup cocoa
• 1 cup brown sugar
• 2 teaspoons vanilla extract
• 2 cups flour
• 1 cup granulated sugar
• 1/2 teaspoon salt
• 1 teaspoon baking soda
• 1/2 cup sour cream
• 2 large eggs
• 1 & 1/2 cups heavy cream
• 1 (7-oz) jar marshmallow creme
• 1/2 cup butter ((1 stick))
• 1/2 cup unsweetened cocoa (preferably Special Dark Cocoa)
• 6 tablespoons sour cream
• 1 teaspoon vanilla extract
• 1/4 cup milk
• 3 & 1/2 cups powdered sugar
• 1 egg white
• 2 cups powdered sugar