In a large mixing bowl, combine the creamy peanut butter and melted butter. Mix well until fully combined and smooth.
Gradually add the powdered sugar to the peanut butter mixture, stirring continuously until dough-like consistency is achieved.
Using a cookie scoop or your hands, roll the mixture into balls, about 1 inch in diameter, and place on a baking sheet lined with parchment paper.
Refrigerate the baking sheet for about 30 minutes to firm up the balls.
While chilling, melt the chocolate chips in a microwave-safe bowl, heating in 30-second intervals and stirring until smooth.
Remove the balls from the refrigerator and dip each into the melted chocolate, allowing excess to drip off before placing back on the baking sheet.
Return the dipped balls to the refrigerator for about 15 minutes to let the chocolate set completely.