Pre-heat the oven to 180/350F degrees and line a baking tin with parchment paper.
Mix the coconut, baking powder, psyllium powder and spices in a bowl.
Add the eggs and oil and mix thoroughly.
Add the apple cider vinegar.
Add the boiling water.
Mix thoroughly.
Pour the mixture into the parchment lined baking tin and bake for 30 minutes until firm.
Cut into quarters to make a sandwich.
Add a filling or use it for a grilled cheese sandwich!