Add oats, protein powder, cinnamon and flax to large bowl.
Add in peanut butter, maple syrup and vanilla extract. Stir to combine.
Mixture should be slightly sticky but still crumbly.
Slowly add in liquid 1 tablespoon at a time and using hands to combine until it comes together in a sticky ball that holds together. If mixture is too dry, add in more liquid but not so much that it won’t hold shape.
Roll into balls using hands.
Place in a container to set in the fridge for at least 30 minutes.
Store in fridge until ready to eat.
For chocolate protein energy balls:
1. Add all ingredients into a food processor and blend until mixture is smooth.
2. If the mixture is too dry, add a bit of warm water.
3. Rolls into balls and roll in coconut