I used peanut butter chips in place of the chocolate chips because that's what I had on hand. (justsotasty.com)
Use raw cacao nibs in place of chocolate chips for a real energy boost without the refined sugar — these get plenty of sweetness from the honey and raisins. (thebettyrocker.com)
The only substitution I made was using brownies in place of the chocolate cake. (tasteofhome.com)