Chocolate Banana Cupcakes

Name: Chocolate Banana Cupcakes
Ingredients: 3 sticks butter; 3 1/2 cups brown sugar; 6 eggs; 3 1/2 cups cake flour; 1 tablespoon baking powder; 1 teaspoon salt; 1/2 teaspoon baking soda; 1/2 teaspoon nutmeg; 2 cups milk; 5 ripe pureed bananas; French Banana Buttercream, recipe follows; Chocolate Ganache, recipe follows; Italian Meringue Buttercream Frosting, recipe follows; 1 cup sugar; 3 egg yolks; 2 1/2 sticks butter; 3/4 teaspoon vanilla extract; 1 ripe banana, pureed; 1 pound chocolate chips; 12 ounces heavy cream; 1 1/4 cups sugar; 2 cups egg whites; 1/2 teaspoon cream of tartar; 4 sticks butter, cubed; 2 teaspoons vanilla extract; 3 tablespoons chocolate ganache