Fritos Chex Mix 1 bag fritos 1 17 oz box corn / rice chex 1 can mixed nuts 1 bag of m&M minis Mix 1 cup butter and 2 cups brown sugar, ½ cup white corn syrup and boli for 12 to 14 mintes Pour over chex Mix and stir. Bak uncovered for 8 minutes at 350 degrees. Stir, break-up. And bak another 5 minutes . Dump out on wax paper and cool. Break into pieces and add m&m whiles still googy.