Boil the kumquats (or oranges) until soft. Kumquats take around 1 hour, oranges around 2. Allow to cool, remove all the pips and puree in a food processor.
Preheat the oven to 180ÂșC. Grease and line a 9" cake tin
Combine the ground almonds with the baking powder.
Separate the eggs. Add the coconut palm sugar to the egg yoks and whisk until combined.
Whisk the egg whites until stiff peaks forms.
Mix the ground almonds and baking powder with the egg mixture and kumquat puree until well combined.
Fold in the egg whites. Pour mixture into prepared tin and cook in the oven for 45-50 minutes, keeping an eye on it to make sure it doesn't burn. To test if it's done push a toothpick or skewer into the centre of the cake. If it comes out clean it's ready.
Leave to cool in the tin. Serve
Store in an airtight container in the fridge. It keeps for quite a few days.