Monster Mash Party Mix

I've made a bunch of different Halloween mixes, and this by far is my favorite.

1 (10 1/2 ounce) package Ritz miniature peanut butter filled crackers

11 ounces (7 cups) small pretzel twists

1 cup dry roasted peanuts

1/2 cup butter or margarine

1 cup sugar

1/2 cup light corn syrup

2 tablespoons vanilla

1 teaspoon baking soda

1 bag candy corn

1 (10 ounce) bag M&M's

Preheat oven to 250 degrees. Grease large pan or roaster. In pan combine Ritz bits, pretzels, and peanuts. Set aside. In medium saucepan combine butter, sugar and corn syrup. Bring to boil over medium heat. Boil for 5 minutes. Remove from heat and stir in vanilla and baking soda. Mixture will foam up. Pour over the mixture in pan and stir until coated. Bake for 45 minutes, stirring every 10 minutes. After baking, pour out onto 2 waxed paper covered cookie sheets and break apart while still warm. When cooled completely toss with candies. Store in airtight container.