Chia Seeds: How to Soak Them, Thicken With Them, and Sneak Them Into Everything

Chia seeds are one of the pantry staples I reach for often. They have almost no flavor, they don’t need cooking, and they do one trick really well: they soak up liquid and turn it into a gel which often times means I can use them in replacement of flour or starch.

That gel trick is what makes them so useful. It’s how a cup of milk becomes chia pudding, how a pan of mashed berries becomes jam without a pile of sugar, and how a thin soup gets some body without flour.

Why I keep them around

• Lots of fiber. 2 Tbs (about 1 oz, or 28g) has around 10g of fiber out of about 12g total carbs. That makes the net carbs very low, and the soluble fiber in the gel helps slow down how fast a meal hits your blood sugar.
• Some protein and good fat. That same 2 Tbs has about 5g of protein and is one of the best plant sources of omega-3s.
• They keep. Dry whole seeds will last a year or two in a cool, dark cupboard. Unlike flax, you don’t need to grind them to get the benefits, so you can keep them whole until you use them.

Do you need to cook them?

No. Chia seeds are fine raw, and most of the time I just stir them into something. You can bake with them, cook them into a hot cereal, or toast them in a dry pan for a couple of minutes to bring out a slightly nutty flavor, but none of that is required.

What you do want is for them to have liquid to soak up. Either soak them first, or add them to something wet enough that they can soak while you eat it or while it sits.

One safety note: don’t eat a spoonful of dry chia and then wash it down with water. The seeds swell fast and can get stuck in your throat. Mixed into food or soaked first, they’re no problem.

How to soak them

The basic method is the same no matter what you’re making:

1. Stir the chia into the liquid.
2. Wait about 5 minutes, then stir again. This is the step people skip. Chia clumps together at the start, and a second stir breaks up the clumps so every seed gets wet.
3. Let it sit until it’s as thick as you want.

The ratio is what changes:

A few things that affect soaking:

• Warm liquid soaks faster than cold. Cold works fine, it just takes longer.
• Ground chia gels much faster than whole, usually in just a few minutes, and gives a smoother result.
• It keeps thickening. Chia that looks a little thin at 10 minutes can be thick after an hour in the fridge. If you’re making something ahead, aim a little thinner than you want it.
• Soaked chia keeps about 5 days in the fridge. I sometimes keep a jar of chia gel ready to stir into things during the week.

Whole or ground?

• Whole is what I use most. The seeds stay visible and give a slightly tapioca-like texture, which is great in pudding, oatmeal, and jam.
• Ground is better when you don’t want the seeds showing or want a smooth texture, like in a sauce, gravy, or baked good. A coffee or spice grinder works. Ground chia goes stale faster, so grind a little at a time or keep it in the fridge.
• White chia works the same as black and doesn’t leave dark specks, which is nice in light-colored foods like cream sauces or vanilla pudding.

What I add them to

• Oatmeal and overnight oats. A tablespoon in my overnight oats makes them thicker and keeps me full longer. With hot oatmeal, add a splash of extra liquid since the chia will take some.
• Smoothies. Add a tablespoon right before blending. If the smoothie sits, it’ll thicken, so drink it soon or add more liquid.
• Yogurt and cottage cheese. Stir in a spoonful and let it sit 10 minutes.
• Pudding. The easy one. Milk, chia, a little cinnamon or vanilla, overnight in the fridge. My cinnamon chia pudding is the everyday version, and the graveyard chocolate chia cups are the fun one.
• Jam. Mash 2 cups of berries in a pan, warm them until they’re juicy, take them off the heat, and stir in 2 Tbs of chia. It thickens into jam in about 10-15 minutes and keeps about a week in the fridge. Sweeten it a little if you want, but ripe fruit often doesn’t need it.
• Baked goods. Stir whole seeds into muffin or pancake batter, or use them in bars like my oatmeal chia bars. You may need a splash more liquid in the batter.
• As an egg replacer. A chia “egg” (1 Tbs chia + 3 Tbs water) can stand in for one egg in muffins, pancakes, and quick breads. It binds well but doesn’t puff things up the way a real egg does, so it can take some experiment sometimes.
• Meatloaf, meatballs, and burgers. Like flax, a spoonful helps hold things together and soaks up juice. It’s the same idea as the flax in my lentil & flax meatloaf.
• Salad dressings. A teaspoon of chia in a vinaigrette gives it a little body so it clings to the greens, which means you can use less oil.
• Drinks. A teaspoon or two stirred into lemonade or water with a squeeze of lime, left to sit 10 minutes, is a classic “chia fresca.”

Using chia as a thickener

This is the use that surprised me the most. You can thicken a lot of things with chia instead of flour or cornstarch, which skips the extra starch.

How to do it:

• Start with about 1 Tbs of chia per cup of liquid for light thickening, and add more a teaspoon at a time.
• Stir it in, stir again after 5 minutes, and give it 10-20 minutes to do its work before deciding if you need more.
• For soups and sauces, ground chia works best. It thickens faster and you won’t notice the seeds.
• You can add it hot or cold. Unlike cornstarch, it doesn’t need to be simmered to work, and it doesn’t break down from acid like tomatoes or lemon.

Good places to try it:

• Soups and stews that came out a little thin
• Chili
• Pasta sauce
• Gravy (use ground white chia so it stays smooth)
• Fruit sauces and pie fillings
• Smoothies and smoothie bowls

How it changes the food

Chia doesn’t thicken quite like flour or cornstarch, so it’s worth knowing what to expect:

• Texture. Whole chia makes things thick and a bit gel-like, with the seeds you can see and feel. Ground chia is smoother but still a little less silky than a cornstarch-thickened sauce. In a chunky soup or chili you won’t notice. In a smooth cream sauce you might.
• Flavor. Almost none. At the amounts above, I’ve never had anyone notice it.
• Color. Black chia leaves dark specks. Use white chia in light foods if that bothers you.
• It holds up. Chia-thickened food reheats well, and it stays thick in the fridge. Leftovers often come out thicker the next day, so you may need to add a splash of water or broth when you reheat.
• It freezes well. Soups and jams thickened with chia freeze and thaw without going watery.
• It makes food more filling. That extra fiber is the whole point for me. A bowl of soup with a couple tablespoons of chia in it keeps me full longer and is gentler on my blood sugar than the same soup thickened with flour.

Start small

Like with any high-fiber food, add chia gradually and drink plenty of water while your stomach gets used to it. A tablespoon in your oatmeal or smoothie is a great place to start. Once you see how it behaves, try thickening your next pot of soup with it instead of flour.