Italian meringue buttercream is a smooth and creamy frosting made from whipped egg whites, sugar, and butter. The sugar is cooked into a syrup and then slowly added to the whipped egg whites, creating a stable meringue. This method results in a light texture and a glossy finish, making it ideal for decorating cakes and cupcakes. This buttercream is less sweet than other frostings, allowing the flavors of the cake to shine through. It can be flavored with various extracts or melted chocolate, making it versatile for different desserts. Its stability also makes it suitable for warm weather.