Prepare the Peanut Butter Mixture:
In a large mixing bowl, combine the creamy peanut butter and softened butter until smooth and well blended.
Gradually add the powdered sugar, mixing thoroughly until fully incorporated.
Gently fold in the Rice Krispies cereal, ensuring the cereal is evenly distributed throughout the mixture.
Form the Balls:
Using a tablespoon or a small cookie scoop, portion out the mixture and roll it between your palms to form compact balls.
Place the formed balls onto a baking sheet lined with parchment or wax paper.
Transfer the baking sheet to the refrigerator and chill the balls for at least 30 minutes to firm up.
Prepare the Chocolate Coating:
In a microwave-safe bowl, combine the semi-sweet chocolate chips and vegetable shortening.
Microwave in 30-second intervals, stirring after each interval, until the chocolate is fully melted and smooth.
Dip the Balls:
Remove the chilled peanut butter balls from the refrigerator.
Using a fork or a toothpick, dip each ball into the melted chocolate, ensuring it is fully coated.
Allow any excess chocolate to drip back into the bowl before placing the coated ball back onto the parchment-lined baking sheet.
Set the Coating:
Once all the balls are coated, return the baking sheet to the refrigerator.
Let the chocolate set completely, which should take about 20 minutes.
Serve:
After the chocolate has hardened, remove the balls from the refrigerator.
Arrange them on a serving platter and enjoy these delightful treats.