Using a pyrex microwave safe measuring cup, melt the Chocolate and coconut oil needed for the chocolate layer in the microwave. Stop and stir every 30 seconds or so.
Add the sweeteners, salt and coconut milk to the measuring cup and stir until combined. Pour the chocolate layer into the prepared pie crust. If omitting the crust be sure to grease your pan.
Using a pyrex microwave safe measuring cup, melt the coconut oil for the peanut butter layer in the microwave.
Add the coconut milk, PB-2, stevia and erythritol and whisk until the PB-2 has dissolved and everything is combined.
Drip the peanut butter layer in stripes on top of the chocolate layer.
Using a butter knife run, swipe parallel lines on the top of the pie to create a peanut butter chocolate marbling effect.
Place the pie in the refrigerator until hardened. This should take a few hours or one hour or so in the freezer. Store in the refrigerator.