Combine the protein powder and cocoa powder in a bowl.
Slowly add in the water, stirring in between little amounts, until you get a smooth pudding-like consistency.
Once a pudding consistency is reached, divide ½ of the mixture between two muffin cups (I use a silpat muffin mold as it is easy to pop the cups out when they are solid)
Then you can freeze for 10 minutes to set.
Next, add ½ tablespoon of nut butter to each cup, then pour the remaining protein pudding to cover the nut butter.
Recipe by Nutrition in the Kitch at https://nutritioninthekitch.com/step-by-step-double-chocolate-protein-nut-butter-cups-an-awesome-treadmill-workout/