The only kind of peanut butter sandwich I eat is with infused chocolate!
It starts by melting baker's chocolate in (infused) coconut oil with some sweetener and salt.
Then spread it out, temper it and let it harden at room temperature or freeze it.
Eat plain, add nuts or dried fruit to make bark if desired, or...
Sandwich two layers around peanut butter before setting/freezing to make the best peanut butter cup you've ever had.