Combine all ingredients in a food processor until a dough is formed or batter starts sticking together. If it is not sticking together add more nut butter or liquid sweetener.
Scoop batter into an 8 x 8 square pan lined with parchment paper and flatten with a back of a spoon until even.
Put in the freezer overnight or for 1 hour to set. Remove and cut into squares. Keep in fridge or freezer until eaten. Makes 9 - 12 bars.
Notes
You can omit the maca root powder, sub carob powder instead of cacao, and sub chocolate sun warrior vanilla protein powder instead of vanilla.