Made a second batch that doubled the recipe, but I needed a bigger bowl for that many egg whites; the recipe was kinda runny and I wound up with it spreading all over the cookie sheet. But it still worked great as flatbread!

However, I'm ditching the paper cups entirely; must get muffin top pans. Especially since I made a roast beef sandwich for my low carbing brother on this flatbread; and he loved it!

Especially after he pulled the paper cup out of his serving...