Add the vanilla extra and egg. Beat until smooth.

Add the coconut flour, baking powder and salt and beat until combined. The mixture will be sticky.

Place the mixture onto a piece of wax paper (or parchment paper). Mould into a log shape, using the paper to roll out and wrap the paper around the dough and secure the ends like a Christmas cracker.

Place in the fridge to firm up for at least an hour.

Preheat the oven to 180C/350F degrees.

Line a baking tray with parchment paper.

Remove the dough from the fridge and cut into 1 cm slices.

Place the slices on the baking tray.