1Heat oven to 325°F. In very large bowl, mix cereals, snacks and peanuts.
2In 1-quart saucepan, heat corn syrup, honey and butter to boiling over medium heat, stirring occasionally. Remove from heat; stir in vanilla. Pour over cereal mixture, stirring until evenly coated. Spread in ungreased 15x10x1-inch pan.
3Bake 20 minutes, stirring after 10 minutes. Spread on waxed paper or foil to cool, about 15 minutes. Break into bite-size pieces. Store in airtight container.