Rich, creamy, buttery, and silky smooth, French Buttercream is a wonderful compliment to most any cake or pastry, both as a frosting and as a filling. When frosting cakes and cupcakes this Buttercream spreads easily with an offset spatula or pipe it with a pastry bag and decorating tip. French Buttercream is made with cooked sugar syrup, whole eggs, and egg yolks, butter and flavoring, resulting in a lovely butter yellow color.