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When I met my husband nearly 20 years ago, he didn’t eat any animal products, including eggs. As someone who loved to bake, I immediately had to figure out how to do it without eggs or dairy. Luckily, my sister-in-law introduced me to flax eggs, and egg-free baking became much easier.

In case you haven’t been introduced to flax eggs yet, I’m here to help. All you need is ground flaxseed and water to make one. I recently spent several months testing other egg substitutes, and flaxseed eggs are still among my “top 4” picks for baking.

However, flax eggs are not suitable for all recipes.

Sometimes, the classic 3-to-1 ratio needs to be modified depending on what you plan to bake. I’ve tested flax eggs in various recipes, including brownies, cookies, cakes, and muffins, and in some cases, this egg substitute works better when you use less water. Be sure to read all the additional tips below to achieve the best results!

⭐⭐⭐⭐⭐ Featured Review

“My son is egg-free, and this flax egg recipe is a game changer.”

– Ramona

flax egg dripping off a spoon over a glass bowl.

What is a Flax Egg?

Flax eggs are an egg substitute used in vegan and egg-free baking. Because flax eggs thicken and gel when combined with water, they make an excellent binder in baking, similar to eggs.

Chia seeds have a similar reaction, so they can also be used as a swap for the ground flax seeds. (If you’ve ever made chia pudding before, you’ve probably seen them thicken, too!)

tablespoon of ground flax seed and water labeled on a counter.

Flax Egg Recipe Ingredients

  • Flax seeds. Your flax seeds must be ground, so if you buy whole flax seeds from the store, you’ll need to use a coffee grinder to break them down into a fine powder. Luckily, it’s now easy to buy ground flaxseed at the store.
  • Water. Adding liquid to ground flax will help it gel into a gooey egg substitute in minutes. In my experience, using hot water will make the flax egg gel faster than cool water, but either option will work.

In general: 1 tablespoon of ground flax + 3 tablespoons water = 1 flax egg. However, some tips on when that might change are provided below.

How to Make Flax Eggs

Step 1:

If you start with whole flaxseed, you must grind it first. Add a few tablespoons of seeds to a coffee grinder, spice grinder, or high-speed blender, and pulse briefly until finely ground. 

(A food processor won’t work to grind the seeds because the bowl is too big.)

You can skip this step if you start with a bag of flaxseed meal or ground flaxseeds you bought at the store.

Note: You can also use whole or ground chia seeds as an egg substitute. I prefer the texture when they are ground, so they blend in with baked goods.

tablespoon of water poured into a bowl with ground flax seeds.

Step 2:

Add one tablespoon of ground flaxseed to a small bowl with three tablespoons of water. Mix well with a spoon or small whisk, then let the bowl rest for 5 minutes.

The mixture will thicken as it rests. This will make one egg replacement.

Once the mixture has thickened, it’s ready to use in your recipe. However, this egg substitute may not work perfectly in all cases, so please refer to the tips below.

Note: In some cases, you may want to use only 2 tablespoons of water to make your flax egg. I recommend using less water when baking something with a runny batter, such as quick breads and muffins. You may also want to use this ratio for cookies, as a regular flax egg might make them feel slightly underbaked.

How to Use Flax Eggs

Chicken eggs not only act as a binder in recipes, but they also help with lift and structure. Flax eggs don’t do all of that, so adjust your expectations when using them.

Use flax eggs in recipes like: 

  • Cookies. Cookies are relatively flat and usually require only one egg. Flax eggs will work well here!
  • Brownies. If you love a brownie with a gooey center, then flax eggs will work just as well here. They don’t provide as much rise and structure as eggs, but they usually hold a brownie recipe together. (If a recipe calls for more than two eggs, check out my other egg substitutes.)
  • Recipes that call for all-purpose flour. Wheat flour and all-purpose flour both contain gluten, making them both very forgiving in recipes. Flax eggs will usually work well in muffins and breads made with regular white flour.

Detoxinista Tip

It’s a good idea to swap your leavener when using flax eggs. If a recipe calls for a 1/2 teaspoon of baking soda, use double that amount of baking powder when using a flax egg. It will help add some of the lift that regular eggs provide.

almond flour cookies on baking sheet.

Don’t use flax eggs in:

  • Recipes that call for more than 2 eggs. Generally, the more eggs you need to substitute, the more issues you may encounter. Using more than 2 flax eggs can result in baked goods that are gooey or underbaked.
  • Paleo & Gluten-free recipes. When using almond flour or coconut flour, flax eggs may not provide the required structure. (If you don’t mind a gooey cookie or brownie, they could still be helpful in that case, but experiment at your own risk.) Even grain-based flours, such as oat flour and buckwheat flour, work better with real eggs, so the result may be more gummy or dense when eggs are left out.
  • Flourless recipes. If a recipe doesn’t call for flour, it probably relies on the eggs for structure. Flax eggs won’t work very well in this case.

For tested egg-free recipes, start with a vegan recipe, which is already egg-free.

Chia Egg vs. Flax Egg

As I mentioned earlier, both chia and flax seeds thicken and gel when soaked in water. This means you can use either option as a substitute for eggs.

According to the Mayo Clinic, flax seeds must be ground for you to fully absorb their nutrients. A research study published in 2023 suggests that chia seeds may be best eaten this way, too, even though chia pudding is quite popular with whole seeds.

The main difference between flax and chia eggs is the flavor. Chia seeds aren’t quite as noticeable in baked goods taste-wise compared to flax, in my opinion. Flax seeds add a more noticeable, nutty flavor that works well in baked goods like banana bread, which may already include nuts.

Flax Egg Substitute FAQs

Can you taste flax eggs in baked goods?

A single flax egg will add a hint of grainy texture and flavor. When I use flax eggs in a quick bread, it reminds me of a bran muffin. (So it will taste a bit “healthier.”)

Does it matter which kind of flaxseed I use?

Golden flax seeds and brown flax seeds both work well as flax eggs. The golden variety, thanks to its lighter color, blends slightly better into baked goods.

flax egg dripping off of a spoon into a glass bowl.

How to Make Flax Eggs (Or Chia Eggs!)

5 from 4 votes
The next time you need an egg substitute in baking, try making a flax "egg." It's made with a simple combination of ground flax seed and water, or you can use chia seeds, too. I've been using these for over a decade, so I'll share what I've learned below– including when flax seeds won't work in a recipe.
prep2 mins cook0 mins total2 mins
Servings:1

Ingredients
 
 

Instructions

  • Add the ground flaxseed and water to a bowl and stir until well combined. Let the mixture rest for at least 5 minutes to allow it to thicken. Note: If using this in a quick bread recipe, use only two tablespoons of water, rather than 3. Breads and cakes don't need the extra moisture. If you don't want soft cookies, you can use just 2 tablespoons in that case as well.
  • When the flax egg looks thicker, you can use it as an egg replacement in baking recipes. (See tips in this post for which recipes work best with a flax egg.)

Notes

  • Nutrition information is for 1 flax egg. This information is automatically calculated, and is just an estimate, not a guarantee.
  • You can use ground chia seeds instead of flax seeds to make a chia egg.
  • Flax eggs work best in recipes that call for all-purpose or whole-wheat flour and don’t require more than 2 eggs. Try them in cookies or brownies where you don’t mind a slightly softer, gooey center.
  • Do NOT use flax eggs as an egg replacement in recipes that call for almond flour or coconut flour. Flax eggs won’t provide the structure that chicken eggs do, so they also aren’t a great fit for flourless recipes.
  • See the full post above for more tips on using flax eggs.

Nutrition

Calories: 37kcal | Carbohydrates: 2g | Protein: 1g | Fat: 3g | Saturated Fat: 0.3g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 1g | Sodium: 4mg | Potassium: 57mg | Fiber: 2g | Sugar: 0.1g | Vitamin C: 0.04mg | Calcium: 19mg | Iron: 0.4mg
Course: Side Dish
Cuisine: American
Keyword: flax egg

Recipes that Use Flax Eggs

If you want to start with a trusted recipe, these already use flax as the binder.

If you try this flax egg recipe, please leave a comment and star rating below, letting me know how it worked out for you!

Megan Gilmore leaning on her white countertop.

Megan Gilmore

Hi, I’m Megan. A former fast food junkie turned best-selling cookbook author. As a Certified Nutritionist Consultant (CNC), I love to make healthier food using simple ingredients. I test these recipes multiple times in my kitchen to make sure they will turn out perfectly for you.

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