Spray a 9x13 pan with non-stick cooking spray.

In a large pot over medium heat melt the butter.

Once butter has melted add the marshmallows. Stir until almost melted.

Add the pumpkin spice morsels. Stir until it's all melted and combined.

Turn off heat and remove the pan from heat.

Add the rice krispies cereal and stir until evenly coated.

Pour treats into your sprayed 9x13 pan. Spray your hands with some non-stick spray and gently press until it evenly fills the bottom of the pan.

Let it cool and then serve.