Question: what is the difference between italian and swiss meringue buttercream?
Answer: Italian meringue buttercream (IMBC) is a thick and creamy frosting that is made by whipping egg whites with sugar syrup and softened butter. Italian meringue buttercream is similar to Swiss meringue buttercream (SMBC) except the sugar is cooked 240ºF before being added to the whipping egg whites.