1In large microwavable bowl, mix cereals; sprinkle with salt. In small microwavable bowl, microwave butter uncovered on High about 20 seconds or until melted. Pour melted butter over cereals; toss to coat.
2Microwave uncovered on High 3 to 4 minutes, stirring every minute, until mixture begins to brown. Spread mixture on waxed paper. Cool 10 minutes.
3Stir in remaining ingredients. Store in airtight container.