Blend all the ingredients except the ice cream in a food processor until mixture resembles cookie dough, adding just enough water for it to come together. (don't over process and make nut butter!). If it gets too wet, add a bit more protein powder or ground almonds until firm. Chill for at least thirty minutes.

Using wet hands, shape into 12 flat circles. Place on a small tray covered with greaseproof paper and freeze until firm.

Use the cookies to make sandwiches with softened ice cream. Either refreeze for later or eat straight away.