Begin by clearing off a counter space or table where you can work comfortably. Gather all your ingredients and tools to streamline the process.
In a large mixing bowl, combine the softened salted butter and creamy peanut butter. Blend until smooth and well combined.
Gradually sift in the powdered sugar, mixing continuously until fully incorporated, forming a thick, dough-like consistency.
Gently fold in the Rice Krispies cereal until evenly distributed throughout the mixture.
Scoop out small amounts of the mixture and roll them into balls, about 1 inch in diameter. Place them on a cookie sheet lined with parchment paper.
Place the cookie sheet in the refrigerator for about 30 minutes to help them firm up.
Melt the chocolate in a microwave-safe bowl, heating in 30-second intervals, stirring until smooth. Add vegetable oil to thin the chocolate.
Dip each chilled ball into the melted chocolate using a fork, ensuring they are fully coated. Return to the parchment-lined cookie sheet.
Allow the coated balls to sit at room temperature or refrigerate for quicker setting.
Once the chocolate has set, enjoy your peanut butter balls! Store leftovers in an airtight container.