What do you do with left over egg whites? You make meringue of course, and I am not talking about lemon meringue pie, I am talking about meringue “cookies”. It sometimes happen that I have egg whites left over, for example during Christmas baking, or Easter baking. One of my Easter recipes, which I still haven’t shared, uses 9 egg yolks. NINE! Sure, you can just toss out the egg whites but what a waste that would be.