So, what’s the difference between buttercream and Italian meringue buttercream? First of all, they are both made with completely different ingredients. Regular buttercream is made of butter, powdered sugar, milk, and vanilla while Italian Meringue is made of egg whites, regular sugar, butter, vanilla, and cream of tartar. Italian Meringue Buttercream is light and fluffy. It is not too sweet and keeps its shape because of the egg whites. Regular Buttercream is fluffy and on the thicker side. It is perfect for icing cupcakes and cakes. I use regular buttercream for icing vanilla or chocolate cakes/cupcakes, and Italian Meringue for Salted Caramel cake and Apple cake.They both have great taste. So, at the end of the day, it’s really your choice. Below are links to the buttercream recipes that I use.