Nicole Hopper is a recipe tester ... until it smooths out. Royal icing is a type of icing that uses stabilizers (such as egg whites, meringue powder, or cream of tartar) that allow it to harden ...

In warmer kitchens it may help to add a pinch of cream of tartar to your buttercream to ... which produce a much richer icing. If the mixture splits or curdle instead of emulsifying, stick the ...

Two ingredients that often perplex bakers are meringue powder and cream of tartar. When it comes to baking, understanding the ...