In a small pot, melt the coconut oil, maple syrup, and nut butter on low.
Remove from heat and whisk in the remaining ingredients using a whisk and not a fork until smooth.
Pour into a silicone baking loaf and top with chocolate chips or sea salt (if using).
Pop in the freezer for one to two hours to set.
Video
Notes
When heating the chocolate protein fudge, keep it on low and remove it when the coconut oil is just melted. Otherwise, the nut butter can burn which will ruin the fudge.When you whisk in the protein powder you need to move quickly so that it mixes smoothly.The stevia is optional and depends on the taste of your protein powder. With a sweeter protein powder, it's not needed.The nutritional breakdown uses Beef protein powder and I find that the stevia isn't needed.You can either portion the fudge into a parchment paper prepared loaf pan and slice it into squares when ready. Or, you can pour into individual silicone molds.If using vanilla protein powder you'll want to add the cacao powder for a rich chocolate taste. If using a chocolate protein powder you can omit it and just add ½ tablspoon more protein.Want more high-protein snacks that taste like dessert? Check out the Strong and Sweet Protein Guide where they all have 17+ grams of protein.