In large microwaveable bowl, mix cereals and nuts; set aside. Line cookie sheet with waxed paper or foil.
In 2-cup microwaveable measuring cup, microwave butter until melted. Stir in brown sugar, molasses and spices uncovered on High about 30 seconds to 1 minute, until mixture is boiling; stir. Pour over cereals and nuts until evenly coated.
Microwave uncovered on High 3 to 4 minutes, stirring and scraping bowl every minute, or until cereal just begins to brown. Spread on waxed paper to cool, about 5 minutes. Stir in cinnamon candies. Store in airtight container.