Preheat oven to 350F and grease your pan (or just use a silicone one!).

In a bowl, combine warm water, peanut butter and Swerve.

In a separate bowl, sift together protein powder, cocoa, coconut flour and baking powder.

Mix the dry ingredients into the wet. A thick batter that has the texture of frosting will form.

Scoop the batter into the pan, smooth the surface and bake for about 40-45 minutes, until a knife comes out pretty clean when inserted. Be sure to adjust the time for different pans, as mentioned in the notes above!

Let cool, slice and enjoy!