The Ultimate Aquafaba Guide: From Vegan Meringues to Savory Sauces and Everything In Between

The first test of any egg‑white substitute is a meringue. Measure out three tablespoons of aquafaba for each egg white you’d normally use. Add a pinch of cream of tartar or a few drops of lemon juice; the acid stabilizes the foam much like it does with real egg whites. Using a clean, dry bowl, beat on medium‑high speed. Within a few minutes the liquid will turn glossy and voluminous, then continue to stiffen into glossy peaks that hold their shape when the beaters are lifted. Fold in sugar gradually—about ¼ cup per three tablespoons of aquafaba—to create a stable Italian or Swiss meringue for pies, pavlovas, or cookies. The key difference? Aquafaba meringues stay softer at room temperature, so bake them a bit longer or finish them under a broiler for crisp edges.

Beyond meringues, aquafaba shines as a binder and leavening aid. Replace each egg in cakes, brownies, or muffins with three tablespoons of liquid, then add a teaspoon of baking powder or soda to compensate for the lost lift. For a fluffy pancake, whisk aquafaba with a splash of plant milk before folding into the dry batter; the trapped air bubbles create a light crumb. When making vegan macarons, swap the egg white for an equal volume of aquafaba, but increase the resting time of the piped shells to allow the surface to dry—this prevents cracks during baking. Remember to adjust salt levels, as canned chickpea liquid can be mildly salty.

Mayonnaise is essentially an emulsion of oil, acid, and an emulsifier. Aquafaba’s protein and starch content makes it an excellent stand‑in for yolk. Start with a cup of aquafaba, whisk in a teaspoon of Dijon mustard and a tablespoon of lemon juice, then drizzle in a cup of neutral oil (sunflower or grapeseed) while the mixer runs on low speed. The mixture will thicken dramatically after a minute, yielding a creamy mayo that can be flavored with garlic, sriracha, or herbs. For a richer texture, replace half the oil with avocado oil; the extra monounsaturated fats give a buttery mouthfeel without overwhelming the delicate aquafaba base.

Not all bean waters are created equal. Commercial canned chickpeas often contain added salt and preservatives that can interfere with whipping. Look for “no‑salt” or “low‑sodium” varieties, or rinse the beans and reserve the cooking liquid yourself. Homemade aquafaba from simmered chickpeas (about 3 cups of water per cup of dry beans) yields a thicker, more protein‑dense liquid that whips faster and holds peaks longer. For a subtle flavor twist, try white bean or lentil aquafaba; they’re lighter in color and work well in pale desserts where chickpea tint would be noticeable.

If you’ve harvested more than you need, don’t let it go to waste. Transfer the liquid to a clean jar, seal tightly, and refrigerate. It stays usable for 5‑7 days; give it a quick shake before each use, as the proteins can settle. For longer storage, pour the aquafaba into an ice‑cube tray, freeze, then transfer the cubes to a freezer bag. Each cube is roughly one tablespoon, making portioning a breeze for future recipes. Thaw cubes in the fridge overnight or gently warm them in a microwave before whipping.

Aquafaba mimics many egg functions, but it isn’t a universal fix. In recipes that rely on the yolk’s fat for richness—think custards, hollandaise, or carbonara—aquafaba lacks the necessary lipid content, resulting in a thin, watery outcome. Similarly, recipes demanding high structural strength, such as soufflés or angel food cakes, may collapse because aquafaba’s foam is less elastic than egg whites. In those cases, combine aquafaba with a small amount of vegan butter or a commercial egg replacer to regain stability.

The emulsifying power of aquafaba isn’t limited to sweet dishes. Whisk it into vinaigrettes for a silky texture that clings to leafy greens without separating. In place of eggs in meatless quiches or frittatas, aquafaba adds lift while keeping the dish dairy‑free. For gravies, stir a couple of tablespoons into a roux before adding broth; the aquafaba prevents lumps and adds a subtle body. Even in homemade veggie burgers, aquafaba acts as a binder, holding the patty together without the need for breadcrumbs or flaxseed gel.

Aquafaba is low in calories—about 3‑5 per tablespoon—and contains trace amounts of protein, iron, and potassium from the beans. It’s virtually fat‑free, making it a heart‑healthy alternative to egg yolks. However, it’s not a significant source of vitamins or minerals, so it shouldn’t be relied upon for nutrition. Its biggest advantage lies in reducing cholesterol and allergen exposure while still delivering functional properties in recipes.

You can whip aquafaba with a whisk, but expect a slower process. Hand‑whipping may take 10‑12 minutes to reach soft peaks, and you’ll need a sturdy balloon whisk to incorporate enough air. A stand mixer or hand‑held electric whisk cuts the time in half and yields more consistent peaks. If you’re committed to a low‑tech approach, chill the aquafaba first and add a pinch of cream of tartar; the colder temperature helps stabilize the foam, making hand‑whipping more achievable.

Start with a small test batch: whip three tablespoons and see how quickly it peaks; this tells you whether your aquafaba is thick enough. If it’s watery, reduce it in a saucepan over low heat until it reaches a syrup‑like consistency—this concentrates the proteins. When substituting for eggs, remember the ratio of 1 egg = 3 Tbsp aquafaba, but you can adjust up to 5 Tbsp for extra moisture in brownies. Finally, always use a clean, grease‑free bowl; even a tiny film of oil will prevent the foam from forming.