Place all protein base ingredients into a food processor. Blitz until combined and forming a sticky texture. If it's too wet, add more protein powder. If it's too dry, add a bit more banana.
Once the sticky texture is achieved, scoop the mixture evenly into a muffin tray, pushing down on the mixture to help it form a cup shape.
Melt the chocolate and coconut oil and spread evenly across the protein cups.
Optional - Top with cacao nibs or dried cranberries.
Freeze for 4-6 hours.