Line two small loaf pans with parchment paper.
Mix protein powder with cacao.
Add water (start with 3 tablespoons), and mix.
Add almond butter and salt. Mix well.
If the fudge is too thick to spoon into a pan, add another tablespoon of water. Mix well.
Spoon fudge into parchment-lined pans.
Freeze for 1-2 hours, until the parchment peels cleanly from the fudge.
Cut into squares, and enjoy!
Store in the front of the freezer. (If they get too frozen, leave at room temperature for a couple of minutes before eating.)