1. Mix sugar, corn syrup, margarine, cocoa, vanilla and salt in 2-quart casserole. Microwave uncovered on high (100%) to boiling, about 1 minute; stir until smooth. Microwave 30 seconds longer.
2. Mix remaining ingredients; stir into hot mixture. Microwave uncovered on high (100%) 1 minute; stir until coated. Spread on waxed paper. Let cool 30 minutes. Shape into 2 1/4-inch balls and wrap in plastic wrap or let stand until hardened; break and serve.