Prepare a 9 X 13 baking dish with parchment paper.
In a large pot, melt butter and marshmallows on medium heat. Make sure you stir every 15-30 seconds until the two ingredients are combined.
Stir in Pumpkin Spice and Cinnamon. Mix until combined.
Mix in a few drops of orange food coloring until you get the desired color.
Add in Rice Krispy cereal and mix until everything is coated in the marshmallow mixture.
Pour mixture into prepared baking pan.
Spray nonstick cooking spray on your hands and press mixture down into the pan until it is one even layer.
Place in the refrigerator for at least 30 minutes.