In a blender or food processor, blend 1/2 cup coconut oil and the avocado until smooth and lump-free.
Transfer this mixture to a bowl, and stir in the scoop of protein powder and the 1/4 cup of cacao powder.
You may have to mix it with your hands (I did), and then knead it a bit.
Taste the dough, and adjust the sweetness level to your liking.
Press the "dough" into a pan.
I used a 9x4" loaf pan.
I also used a silicon one so that I could just pop it out, but if you use a metal one, just line it with wax paper.
Melt together the 1/4 cup of coconut oil and 2 tbsp cocoa powder.
Add stevia/powdered erythritol to your liking.
Pour this over the dough in the pan, and freeze for about 15 minutes , until the glaze has set.
Remove the pan from the freezer, carefully run a knife around the edges and pop the whole thing out.
Cut into ten pieces, and enjoy!