Preheat oven to 350 degrees. Dip candied bacon slices in melted chocolate and let come to room temperature while preparing the dough. If needed, stick them in the fridge for a few minutes.
Cream butter, peanut butter and sugars together in the bowl of an electric mixer until fluffy – about 3-4 minutes. Add egg and vanilla, mixing until combined. Add flour, baking soda and salt, mixing until just combined and dough forms. Crumble bacon and fold it into dough. Drop tablespoon-sized dough balls on a baking sheet and bake for 10-12 minutes.