Preheat the oven to 175C
Prepare your ingredients for the blender by mashing up the avocado and measuring the remaining ingredients.
If mixing by hand, ensure the avocado is well mashed before adding the other ingredients to avoid lumps and ensure a smooth batter
Blend or mix the ingredients throughly until smooth
Place in a 20cm by 20cm roasting tray lined with baking paper.
Bake for 20 mins
Allow to cool completely before slicing