Line a baking tray with baking paper and preheat oven to 150°C
Combine all dry ingredients in a bowl
Over a low heat, melt the honey, vanilla and coconut oil together
Add the mixture to the dry ingredients
Add egg. Mix all really well until totally combined.
Put mixture into baking tray and flatten to about 1-2 cms. The thinner it is the crunchier it will be.
Place in oven for 30 minutes or until lightly browned all over
Place a sheet of baking paper over the slice after it has been in the oven for 15 minutes to prevent slice from over-browning
Leave slice in the tin until thoroughly cool and crisp
Cut carefully into rectangles or squares