Butter a 9x9 baking dish and keep it in the freezer while you prepare the other ingredients to chill the pan.

In a saucepan melt butter over medium-low heat. Add the pumpkin puree and continue to cook until all of the butter is incorporated.

Fold in the bag of marshmallows and spices into the mixture until fully incorporated and remove from heat.

Cool mixture for about 10 minutes before quickly folding in 7 cups of rice krispies (cooling the mixture is key to avoid the rice krispies becoming soggy!)

Press the mixture into the greased baking dish.

Let the treats set for at least 30-45 minutes before cutting and serving, pair with Green Mountain Coffee® Pumpkin Spice Coffee!