Step 1Preheat the oven to 170 °C/ 340 °F (fan assisted). In a Vitamix, blitz the flax seeds to a flour consistency or alternatively you can buy ground flax seeds. Chop the rosemary leaves up fine.
Step 2Add the ground almonds, flax, chopped rosemary, onion powder, bicarbonate of soda, salt and pepper to a large bowl and mix.