Flax Egg: What is a flax egg and how to make it with just two ingredients?
It looks like an egg, it's used like one, but it contains no animal ingredients: the flax egg, literally "linseed egg," is one of those little plant-based cooking tricks that can be useful even for those who don't follow a vegan diet.
What is flax egg?
We're not talking about a product normally found on supermarket shelves alongside plant-based egg alternatives, but, much more simply, a homemade preparation made by letting ground flaxseeds and water steep. The result is a dense, slightly gelatinous mixture that can be used in place of eggs in some recipes, especially when its primary function is to bind ingredients together. The comparison with eggs, therefore, isn't so much about flavor as about its function in the kitchen. Flax eggs aren't used to create a vegetable omelet and can't replicate all the characteristics of a chicken egg: their main strength is their ability to give structure to dough.
This transformation is possible thanks to mucilage, a water-soluble substance found in the outer layer of flaxseeds. When it comes into contact with water, it forms a sort of natural gel: it is precisely this consistency that allows flax egg to act as a binding agent in certain preparations. This effect is particularly useful in doughs where the egg serves to hold together flours and other ingredients. It is therefore no coincidence that this ingredient has become very popular in vegan cuisine and plant-based baking: with a very simple process, you can obtain a compound capable of performing one of the most important functions of its animal counterpart.
How to prepare flaxseed egg
The preparation is surprisingly simple. To obtain the equivalent of one egg, you need 1 tablespoon of ground flaxseed and 3 tablespoons of warm water: mix the two ingredients in a small bowl and let the mixture sit for about 10-15 minutes. During this time, the liquid is absorbed, and the mixture becomes progressively thicker and more viscous. Once the required time has passed, simply stir again and the flax egg is ready to use. The key is to start with pre-ground flaxseed, often sold as flour or flaxseed meal. Alternatively, you can grind the whole seeds directly using a powerful blender or an electric coffee grinder.
In which recipes can flax egg be used?
Flax eggs are particularly effective in baked goods: they can be used, for example, to make muffins, plum cakes, banana bread, cookies, pancakes, and waffles. They're also particularly suitable for some savory dishes that require a binding ingredient, such as meatballs and veggie burgers. The result, however, isn't identical to that obtained with a traditional egg: in desserts, for example, the texture may be slightly crumbly, and the emulsifying properties of the yolk's lecithin are missing, which are essential for binding fats to water and giving the dough a soft, airy texture.
If prepared ahead of time, flax eggs can be stored in an airtight container in the refrigerator for up to two days. Flaxseed meal should also be stored in the refrigerator away from light: the omega-3 fatty acids it contains oxidize very quickly, causing the product to go rancid.
