In a large saucepan over medium-low heat, melt the 1 cup of unsalted butter. Keep stirring until it’s completely melted and bubbly, but be careful not to let it brown.
Once your butter is melted, add in the 7 oz of pumpkin-shaped marshmallows and stir constantly until they are fully melted and combined with the butter. This should take about 2-3 minutes.
Stir in the 1 teaspoon of pumpkin spice until it’s evenly distributed throughout the melted marshmallow mixture. The aroma will be heavenly!
Remove the saucepan from heat and immediately add in the 5 cups of Rice Krispies cereal. Gently fold the cereal into the marshmallow mixture until all the cereal is coated.
Once the Rice Krispies are well mixed in, fold in the 1 cup of semi-sweet mini chocolate chips. The chips will melt slightly, adding a delicious texture to your treats.
Transfer the mixture to a greased 9x13 inch baking pan. Use your spatula to press it down evenly, making sure it’s packed tightly for the best texture.
Allow the treats to cool at room temperature for about 30 minutes. Once set, cut them into squares or fun shapes using a cookie cutter.