2 1/2 cups halved pretzel sticks
2 cups corn Chex
1 1/2 cups M & M's
1/2 cup butter
1/3 cup creamy peanut butter
5 cups marshmallows

In a large bowl, combine pretzels, cereal and M & M's. In a large saucepan over low heat, melt butter and peanut butter. Add marshmallows; cook and stir until marshmallows are melted and mixture is smooth. Pour over pretzel mixture; stir to coat.  Press into a greased 13 in. X 9 in. X 2 in. baking pan. Cool until firm; cut into squares.