Preheat oven to 350º F. Line a large baking sheet with parchment paper or silicon liners. Set aside.
Mix together Chex cereal and Honey Nut Cheerios in a large mixing bowl.
4 cups Chex Cereal, 4 cups Honey Nut Cheerios
In a saucepan melt butter, brown sugar and corn syrup together. Heat over medium high. Bring to a rolling boil, and boil for 1 minute. Remove from heat and stir in vanilla extract.
1 cup light brown sugar, 1/2 cup unsalted butter, 1/4 cup light corn syrup, 1 teaspoon vanilla extract
Pour mixture over cereal, mix until everything is evenly coated. Spread into an even layer on prepared baking sheet.
In a small bowl mix together granulated sugar and pumpkin spice. Sprinkle evenly over cereal mixture. Mix until it everything is well coated.
1/2 cup granulated sugar, 1 Tablespoon pumpkin pie spice
Bake for 5 minutes, stir well, bake for an additional 5 minutes. Remove from the oven stir again and let it set for 1-2 hours for it to cool completely.
Once cool mix in nuts, pretzels, M&M's and candy corn before serving.
1 cup peanuts, 1 cup pretzels, 1 cup Halloween M&M's, 1 cup pumpkin candy corn