Soak chickpeas in water overnight. In the morning, drain the water and put the chickpeas to boil. Drain the cooking water into a deep bowl, allow to cool. Whisk with a mixer until the clear aquafab (liquid after cooking the beans) becomes white foam. This water contains a lot of protein from chickpeas, so it is whipped like egg whites.
Then add powdered sugar, or lavender syrup, honey, etc. For blue color we add the powder of flower Klitoria (Anchan tea, blue matcha), for green - powder of matcha tea or chlorella, for red - beet juice or powder, yellow – for tumeric.