Egg whites are a versatile ingredient that can be used in a variety of recipes. Here are some ideas for what to make with egg whites:

1. Meringues: Meringues are a classic use for egg whites. They can be flavored with vanilla, chocolate, or other ingredients, and can be piped into a variety of shapes.

2. Angel food cake: Angel food cake is a light and fluffy cake that is made with whipped egg whites. Its a great way to use up a lot of egg whites at once.

3. Macarons: Macarons are a delicate French cookie that are made with almond flour and egg whites. They can be filled with a variety of flavors, such as chocolate, raspberry, or lemon.

4. Pavlova: Pavlova is a dessert that is made with a meringue base and topped with whipped cream and fresh fruit. Its a great way to showcase the light and airy texture of whipped egg whites.

5. Cocktails: Egg whites can be used to add a frothy texture to cocktails, such as a whiskey sour or a gin fizz.

6. Roasted potatoes: Egg whites can be used to create a crispy coating on roasted potatoes. Simply toss the potatoes with beaten egg whites before roasting.

7. Buttercream: Swiss meringue or Italian meringue buttercream can be made with egg whites. They are a great way to use up a lot of egg whites at once and can be used to frost cakes or cupcakes.

8. Candied nuts: Egg whites can be used to create a sweet and spicy coating on nuts. Simply mix the egg whites with sugar and spices, coat the nuts, and bake until crispy.

9. Omelets: Egg white omelets are a healthy and low-fat breakfast option. Simply whisk the egg whites with a little milk, salt, and pepper, and cook in a nonstick pan.

10. Freezing: If you dont have an immediate use for your egg whites, they can be frozen for later use. Simply transfer them to a freezer-safe container and label with the date. They can be stored in the freezer for up to 3 months.

Remember that two egg whites can substitute for a single whole egg in many recipes, like cakes and cookies, that call for whole eggs.