Melt butter in a large saucepan over low heat. Once melted, add the mini marshmallows and stir until completely smooth. Add a few drops of orange food coloring for the signature pumpkin shade, and stir until evenly combined.
Gently fold in the Rice Krispies cereal until every piece is well-coated in the marshmallow mixture. Make sure to work quickly so the mix doesn’t harden too fast.
Lightly grease your hands with butter or cooking spray. Scoop a portion of the mixture, roll it into a ball, and flatten the top slightly to resemble a pumpkin. Use your fingers to shape ridges along the sides for extra detail.
For the final touch, roll a piece of green fruit roll-up into a mini stem shape. Attach it to the top of the pumpkin along with a pretzel stick inserted firmly for support.
Place the pumpkins on a wax paper-lined tray, allowing them to set for around 30 minutes. Once cooled, they’re ready to serve and enjoy!