Psyllium husk

Another plant-based soluble fiber that may be used as a thickener is psyllium husk. Psyllium is a gluten-free seed that is finely ground into psyllium husks, a powdered form. It may be used for a variety of health and culinary purposes because it has no flavor and almost no calories. Psyllium is probably best known for its use in fiber supplements to promote regularity, but it also benefits your overall health.

Psyllium husk forms a thick, mucilage-like consistency when combined with water. This "gel" acts as a binder in baked goods. Psyllium husk might be a helpful addition to your pantry if you avoid eggs, gluten, and/or want to consume a low-carbohydrate diet but still want to include foods that resemble bread, flatbread, wraps, muffins, or burger buns. But you only need a tiny amount of it to thicken recipes, so start with half a teaspoon and increase as needed.