1. Preheat oven to 350°. Stir together first 4 ingredients; gently stir in peaches until coated.
2. Unwrap Brie; trim and discard rind from top. Return cheese to wooden box bottom, and place box on a baking sheet.
3. Bake at 350° for 10 minutes. Spoon peach mixture over Brie, mounding slightly. Bake 5 minutes or until cheese is melted. Carefully transfer box to a platter, and serve immediately with crackers.