Set the oven to 170C/Gas 3

Put the chia seed in a bowl and pour over 100 ml boiling water. Allow to stand for 10 minutes.

Pour hot water over the cocoa nibs t just cover and allow to stand for 10 min, then chop finely.

Combine the ground flax seed, rice flour, buckwheat flour and fine sea salt in a bowl

Add the soaked chia and cocoa nibs to the dry ingredients and mix to forma stiffish paste.

Lightly oil pieces of non-stick parchment paper or silicone baking mats.

Put the dough onto the mat, cover with the second piece and roll out to the thickness of 1 seed.

Peel the top mat off the dough, you can either bake it in a whole piece or cut square or triangle shapes into the dough.

Put the mat with the dough on it onto a baking sheet and bake for 20 min.