Champagne Cupcakes With Sweet Champagne Buttercream Frosting

Bahan-bahan (20 porsi)

• 2 3/4 cups all-purpose flour
• 3 tsp . baking powder
• 1 tsp . salt
• 2/3 cup butter
• 1 1/2 cups white sugar
• 3/4 cup champagne (the sweeter the better – even strawberry would be great!!)
• 6 egg whites
• 3 1/4 cups powdered sugar
• 1 cup butter, at room temperature
• 1/2 teaspoon vanilla extract
• 3 tablespoons champagne, at room temperature