1. Preheat the oven to 180C (350F). Sift together the dry ingredients in a large mixing bowl. In a separate bowl, whisk the wet ingredients until well combined.
2. Fold the wet ingredients into the dry until a dough is formed. Knead the dough for 1-2 minutes and shape it into a rectangular flat log (See image for shape). Place onto a baking paper-lined tray and bake for 30 minutes until it starts to turn golden.
3. Take out of the oven for 25 minutes to set, leaving the oven on.
4. Once 25 minutes have passed, slice with a bread knife into 1cm thick slices. Place back onto the baking tray and bake for a further 25 minutes.