Chia seeds and water
Chia seeds, when soaked, generate a gel similar to xanthan gum. Furthermore, these seeds are high in fiber and vital minerals. While chia seeds may be used whole, they offer a little grit and a mild, nutty taste to your dish, so ground them if you want a smoother texture.
Chia seeds can be used in place of xanthan gum in a 1:1 ratio. Stir with 2 parts hot water for every 1 part chia seeds until the mixture turns thick. To account for the use of chia gel, you may need to increase the baking time by 10-15 minutes. When chia seeds are combined with liquid, they produce a gel that can help thicken and bind baked foods. Use the same amount of powdered or whole seeds as xanthan gum, and whisk in water.