Lightly grease your pan or line it with parchment paper to prevent sticking.
Melt the butter in a large saucepan over medium heat, listening for a gentle bubbling as the butter melts completely and begins to smell warm and buttery.
Add the mini marshmallows to the melted butter, stirring constantly with a spatula. Continue until the marshmallows are fully melted and the mixture is smooth, bubbling softly and smelling sweet.
Remove the pan from heat and add a few drops of orange gel food coloring. Stir quickly to evenly tint the mixture to a bright, pumpkin orange—this will make your treats cheerful and festive.
Immediately fold in the rice cereal, stirring gently until each piece is coated in the sticky orange mixture. The mixture should be thick and gooey, with a vibrant hue.
Pour the mixture into your prepared pan. Use a spatula or buttered hands to press it down evenly, smoothing the surface. Let it sit for about 10 minutes to set and firm up.
Once cooled, gently lift the block of treats from the pan using the parchment paper or by flipping it onto a cutting board. Cut into small squares or use cookie cutters to shape mini pumpkins.
Shape each square into a tiny pumpkin by pinching the top to create a small bump or stem. Decorate with chocolate chips for eyes and a nose, or add a tiny green icing stem for extra charm.
Let the shaped treats sit at room temperature for at least 30 minutes, allowing them to firm up and making them easier to handle. Add a small green candy stem or dots of icing to mimic pumpkin stems.
Enjoy your adorable and festive pumpkin rice Krispie treats—perfect for Halloween parties or a seasonal snack that’s both fun and delicious!