Gather the ingredients. Line a baking sheet with parchment paper or waxed paper.
In a large mixing bowl, combine the powdered sugar, creamy peanut butter, melted butter, vanilla extract, and salt until smooth.
Scoop and shape into 1-inch balls. Place on the prepared baking sheet and chill until firm, at least 20 minutes.
Place the chocolate chips and vegetable shortening in a microwave-safe bowl. Microwave in 30-second intervals, stirring each time, until the mixture is completely melted and smooth.
Insert a toothpick in the top center of a chilled peanut butter ball.
Dip the ball into the melted chocolate, about 3/4 of the way, leaving a circle of peanut butter visible on top. Allow the excess chocolate to drip off into the bowl, then place the buckeye back on the baking sheet.
Remove the toothpick and carefully smooth over the hole. Repeat with the remaining peanut butter balls and chocolate. If chocolate thickens as you are dipping the buckeyes, microwave in 10-second intervals until it achieves the desired consistency when stirred.
Chill again until the buckeyes are firm and the chocolate is set, at least 30 minutes.
Serve chilled straight from the refrigerator or at room temperature. Refrigerate in an airtight container for up to 5 days or freeze for up to 3 months.