Ingredients: Gather crispy rice cereal, chocolate chips, peanut butter, butter, vanilla extract, and optional toppings like chopped nuts or shredded coconut.
Melt: In a saucepan over low heat, melt together chocolate chips, peanut butter, and butter, stirring until smooth.
Mix: Remove from heat and stir in vanilla extract. Add crispy rice cereal to the mixture and stir until evenly coated.
Press: Press the mixture firmly into a greased or lined baking pan, spreading it out evenly.
Chill: Place the pan in the refrigerator for at least 1-2 hours, or until the bars are firm and set.
Slice and Serve: Once chilled, slice the bars into squares or rectangles.