Preheat oven to 250F degrees. Place apples in a large shallow baking pan. Bake 20 minutes. Remove pan from oven and stir in popcorn and nuts. In a small bowl combine remaining ingredients. Drizzle butter mixture over popcorn mixture, stirring well.
Bake for 30 min, stirring every 10 min. Pour onto waxed paper to cool. Store in airtight container.