Freeze for 1-2 hours, until the parchment peels cleanly from the fudge.
Cut into squares, and enjoy! (Drizzle with additional coconut butter if desired, not included in macros.)
Store in the freezer. (If they get too frozen, leave at room temperature for a couple of minutes before eating.)
Notes
A note about substitutions: You can substitute casein powder for the whey powder. For a vegan version, you could use a pea blend like Vega Sport Chocolate or Warrior Blend. I think other vegan powders would be too chalky.