Line your pan with parchment paper, leaving overhang on the sides for easy removal.
In a medium bowl, add the peanut butter, honey, and melted butter. Mix everything together until you get a smooth, sticky mixture that pulls away from the sides of the bowl.
Press this mixture evenly into the prepared pan, using the back of a spatula or spoon to smooth the top and make it compact. The mixture should feel firm but slightly sticky.
Break the chocolate into small pieces and melt it with the coconut oil in a microwave or double boiler, stirring frequently until the mixture is shiny and smooth.
Pour the melted chocolate over the peanut butter layer, spreading it out evenly with a spatula or the back of a spoon. Tilt the pan slightly to help the chocolate spread to the edges.
Place the pan in the refrigerator and chill for at least 2 hours, or until the chocolate is set and the bars are firm to the touch.
Once set, lift the bars out of the pan using the parchment overhang. Use a sharp knife to cut into 12 even squares or rectangles.
Serve the bars immediately, or store in an airtight container in the fridge for up to a week. Enjoy the chewy base and glossy chocolate topping with every bite!