1. Place the banana in a bowl and use a fork to mash it until it becomes puree.
2. Add the hazelnut cream and stir.
3. Blend thoroughly.
4. Put the protein in.
5. Mix thoroughly once more.
6. Pour the mixture onto a piece of parchment paper.
7. Form it into a biscuit.
8.Microwave on high for 4 minutes, stirring every minute.