If you have ever made custard, hollandaise sauce, or ice cream from scratch, you have probably found yourself staring at a bowl of leftover egg whites, wondering what to do with them.
It is a common kitchen conundrum.
Recipes often call for yolks only, leaving the whites behind like culinary orphans. But here’s the truth: leftover egg whites are far from useless. In fact, they are one of the most versatile, protein-rich ingredients you can have in your fridge.
Here’s why egg whites are worth saving, how to store them properly, and how to turn them into delicious dishes—both sweet and savory. Whether you have one or a dozen, there’s a recipe waiting to make those leftover egg whites shine.
Why Leftover Egg Whites Matter
Egg whites, also known as albumen, are composed mostly of water and protein.
They are fat-free, low in calories, and incredibly functional in cooking. When whipped, they trap air and create volume—think meringues, soufflés, and angel food cake. When heated, they firm up and bind, making them ideal for omelets, meatballs, and baked goods.
They are also a great way to reduce food waste. Instead of tossing them or letting them languish in the fridge, you can use them to stretch your grocery budget and add nutrition to your meals.
How to Store Leftover Egg Whites
If you are not ready to use your egg whites immediately, don’t worry—they store beautifully.
- Refrigerator: Place them in an airtight container and store for up to 4 days.
- Freezer: Egg whites freeze exceptionally well. Pour them into an ice cube tray (one white per compartment), freeze, then transfer to a freezer-safe bag. Label and date them—they will keep for up to 3 months.
When ready to use, thaw overnight in the fridge. For recipes that require whipping, let them come to room temperature first.
Sweet Recipes to Use Up Egg Whites
Let’s start with dessert—because leftover egg whites are magic when it comes to sweets.
1. Meringues
Simple and elegant, meringues require just egg whites and sugar. Whip until stiff peaks form, pipe or spoon onto a baking sheet, and bake low and slow until crisp. Add vanilla, lemon zest, or cocoa powder for flavor variations.
2. Angel Food Cake
This cloud-like cake uses a dozen egg whites to create its signature airy texture. It is fat-free, light, and perfect with berries and whipped cream. You will need a tube pan and a gentle hand when folding in the flour.
3. Macarons
French macarons are delicate sandwich cookies made from whipped egg whites, almond flour, and sugar. They are tricky but rewarding, and a great way to use up several whites at once.
4. Pavlova
Named after the ballerina Anna Pavlova, this dessert features a crisp meringue shell with a marshmallowy center, topped with whipped cream and fresh fruit. It is stunning and surprisingly simple.
5. Coconut Macaroons
Not to be confused with macarons, these chewy cookies combine leftover egg whites with shredded coconut and sugar. Dip in chocolate for extra indulgence.
6. Flourless Chocolate Cookies
These rich, chewy cookies use egg whites to bind cocoa powder and sugar into a fudgy treat. They are naturally gluten-free and deeply satisfying.
Savory Recipes That Use Egg Whites
Leftover egg whites aren’t just for desserts—they are excellent in savory dishes too.
1. Egg White Omelet
Whisk egg whites with salt, pepper, and herbs, then cook in a nonstick skillet. Add veggies, cheese, or smoked salmon for a protein-packed breakfast. The texture is light and fluffy, and it s a great way to start the day.
2. Egg White Frittata
Similar to an omelet but baked, a frittata is perfect for feeding a crowd. Sauté vegetables, pour in egg whites, sprinkle with cheese, and bake until set. Slice and serve warm or cold.
3. Meatballs or Meatloaf
Use egg whites as a binder in meatballs or meatloaf instead of whole eggs. They help hold everything together while keeping the dish lean.
4. Stir Fries
Add whipped egg whites to stir-fried vegetables or tofu for a silky texture and extra protein. They cook quickly and absorb flavors beautifully.
5. Savory Pancakes or Crepes
Mix egg whites with flour, herbs, and grated vegetables to make savory pancakes. They are great for lunch or as a side dish.
Creative and Unexpected Uses
Leftover egg whites can also be used in more unconventional ways.
Protein Donuts
Yes, donuts! Combine egg whites with oat flour, baking powder, and a touch of sweetener to make baked protein donuts. They are light, fluffy, and guilt-free.
Granola Clusters
Use egg whites to bind oats, nuts, and seeds into crunchy granola clusters. Bake until golden and enjoy as a snack or breakfast topping.
Cocktails
Egg whites are a classic ingredient in cocktails like the whiskey sour or pisco sour. They add a silky texture and a beautiful foam on top.
Homemade Marshmallows
Whip egg whites with sugar syrup to make pillowy marshmallows. Flavor with vanilla, peppermint, or fruit extracts.
Sealing Doughs
Brush egg whites on pie crusts or stromboli edges to seal them before baking. It helps create a crisp, golden finish.
Tips for Cooking with Egg Whites
- Avoid yolk contamination: Even a tiny bit of yolk can prevent whites from whipping properly.
- Use clean, dry bowls: Any grease or moisture can interfere with whipping.
- Room temperature is best: Let whites sit out for 30 minutes before whipping for maximum volume.
- Add acid: A pinch of cream of tartar or lemon juice helps stabilize whipped whites.
Final Thoughts
Leftover egg whites are a gift, not a burden.
With a little creativity, they can become the base of elegant desserts, healthy breakfasts, and satisfying snacks. Whether you are whipping up a pavlova or folding them into a frittata, egg whites offer endless possibilities—and a great excuse to experiment in the kitchen.
So next time you are making custard or hollandaise, don’t toss those leftover egg whites. Freeze them, save them, and treat them like the versatile ingredient they truly are. Your taste buds—and your budget—will thank you.