Available sizes 150g Aquafaba is the new plant-based alternative we use in our pioneering plant-based tzatziki, to replace dairy yogurt. Aquafaba is the viscous water in which chickpeas have been cooked. It is gluten-free and has only about three to five calories per tablespoon. esti Aquafaba Tzatziki is an authentic Greek tzatziki recipe with a dairy-free twist and fresh cucumbers from the island of Crete. With extra virgin olive oil. Non-GMO. No Gluten. No preservatives. No lactose. No soy. Vegan.