In a medium saucepan, set over low heat, combine 1 cup of smooth peanut butter and ½ cup of honey (or light corn syrup). Stir continuously for about 3-5 minutes until the mixture is smooth and fully blended.

Stir in 1 teaspoon of vanilla extract to the warm peanut butter mixture, mixing thoroughly with a spatula.

In a large mixing bowl, pour the creamy peanut butter mixture over 6 cups of Rice Krispies cereal and gently fold until each piece is coated.

Line a muffin tin with paper liners and press the cereal mixture firmly into each cup, filling them about three-quarters full.

In a microwave-safe bowl, combine 1 cup of semi-sweet chocolate chips and 2 tablespoons of unsalted butter. Microwave in 30-second intervals, stirring until smooth.

Drizzle the melted chocolate over each Rice Krispie cup, spreading it to cover the tops completely.

Place the filled muffin tin in the refrigerator and let them chill for at least 30 minutes, or until the chocolate is fully set.

Remove the cups from the muffin tin by gently pulling on the paper liners and enjoy!