Add the USN Diet Fuel Vanilla, oat flour and salt to a bowl and mix well.
Add the Greek yoghurt, sugar-free maple syrup and vanilla extract, and stir to combine.
Add 40ml of cold water and mix thoroughly. Gradually add more water, a little at a time, until you have a thick but smooth batter. You may not need the full 50ml.
Fold through the mini chocolate chips.
Cover and refrigerate for at least four hours. For the best texture, leave it overnight.
Once chilled, stir the cookie dough. If it has become too thick, add a teaspoon or two of water and mix until you reach your preferred consistency.
Serve cold and enjoy the entire bowl.