Add the coconut milk, olive oil and whisk until combined.
Add the cassava flour, coconut flour, tigernut flour, tapioca flour, poppy seeds, baking soda, cream of tartar, cinnamon, vanilla powder, nutmeg cardamon (omit for AIP) ginger, zest of lemon.
Put arrowroot flour and water in a cup and stir to make an egg replacer.
Add to the batter mixture
Bake at 170°C/ 338°F for 50 minutes
Take out of the oven and let the cake cool before frosting.
Then make the frosting by mashing the banana and add all ingredients for frosting into the bowl. It should come together by mashing the dry ingredients into the wet ingredients. Use a hand blend to blend it all together.