Snack Mix Squares 2 Recipe

In a large bowl, combine the 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 13 X 9 inch pan. Cool until firm, cut into squares.