Line a baking sheet with parchment paper or wax paper.Add the peanut flour to a medium bowl, and make a well in the center. Pour in the cashew milk and stevia. Stir until all of the ingredients are fully incorporated. Roll the peanut butter mixture into 24 balls, and place each ball on the prepared baking sheet.Add the dark chocolate to a small microwave-safe ramekin. Microwave on HIGH for 15-second intervals, stirring thoroughly after each one, for 30-45 seconds or until all of the chocolate has melted. Be careful not to overcook the chocolate!Working with one peanut butter ball at a time, press a toothpick into the center until it goes all the way through. Dip the ball into the melted chocolate, and shake off the excess. Place the ball back onto the prepared baking sheet, and slide the toothpick out. Repeat with the remaining peanut butter balls and chocolate. Let the chocolate on the buckeyes set for at least 20 minutes before serving or transferring to an airtight container to refrigerate.