01 - In a large bowl, beat the peanut butter, softened butter, vanilla extract, and salt together using a hand or stand mixer until smooth and creamy.
02 - Gradually add the powdered sugar, one cup at a time, mixing thoroughly after each addition. Continue until the dough is stiff enough to roll without sticking to your hands.
03 - Scoop tablespoon-sized portions of the dough and roll them into smooth, uniform balls. Arrange them on a parchment-lined baking sheet.
04 - Refrigerate the peanut butter balls for 30 minutes until firm and easy to handle during dipping.
05 - In a microwave-safe bowl, combine the chocolate chips and shortening. Melt in 30-second intervals, stirring between each, until the mixture is completely smooth and glossy.
06 - Using a toothpick, dip each chilled peanut butter ball into the melted chocolate, leaving the top third exposed to resemble a buckeye nut. Gently tap off any excess chocolate.
07 - Return each dipped ball to the parchment-lined baking sheet. Once all are dipped, refrigerate for 15 to 20 minutes until the chocolate coating is fully set.
08 - Remove the toothpicks and gently smooth over any holes in the tops if a polished appearance is desired.