Melt 1/2 cup peanut butter, 1/3 cup brown/malt rice syrup, and 1/4 cup coconut oil over low heat until mixed and warmed through.
Pour over 1 and 3/4 cups of millet puffs and stir until completely combined. Press mix firmly into an 8×8 square tin.
Melt 1/2 cup dark chocolate chips and 1/2 teaspoon of coconut oil. Spread chocolate mix over millet mix. Allow to cool completely.
Loosen slice by sliding a knife around the sides of the tin. Remove slice from tin and cut into wedges or squares. Store in an air-tight container. Do not freeze.