Prepare the Pan: Begin by greasing a 9x13 inch baking pan lightly with butter or cooking spray to ensure easy removal later.
Melt Butter and Marshmallows: In a large saucepan set over medium heat, melt the butter until bubbling. Once melted, add in the mini marshmallows. Stir continuously until the marshmallows are completely melted and the mixture is smooth and creamy.
Add Peppermint Extract: Remove the saucepan from heat. Stir in the peppermint extract along with a pinch of salt, mixing until well incorporated.
Combine with Rice Krispies: Quickly add the Rice Krispies cereal to the marshmallow mixture, folding gently to coat the cereal evenly without crushing it.
Incorporate Chocolate Chips: Allow the mixture to cool for about 1-2 minutes. Then, add half of the chocolate chips (1/2 cup) and half of the crushed peppermint candies (1/4 cup) into the bowl. Stir until they are evenly distributed throughout the mixture.
Press into the Pan: Transfer the cereal mixture into the prepared baking pan. Use a buttered spatula or your hands (lightly greased) to press it down firmly and evenly.
Melt Remaining Chocolate: In a microwave-safe bowl, melt the remaining chocolate chips in 30-second intervals, stirring after each session until the chocolate is smooth and completely melted.
Drizzle Chocolate: Pour the melted chocolate over the surface of the pressed Rice Krispie treats. Use a spatula to spread it evenly across the top.
Add Remaining Peppermint: While the chocolate is still melted, sprinkle the remaining crushed peppermint candies over the top for added crunch and holiday flair.
Let Set: Allow the treats to cool at room temperature until the chocolate has hardened, which will take approximately 30-60 minutes. Once set, cut into squares or rectangles for serving.
Notes
Serve on a festive platter or package in gift boxes for a charming homemade gift.