Cheddar Cheese Popcorn

3 T melted butter
1/4 c & 1 T cheddar cheese powder
1/4 t mustard powder
1/4 t cayenne pepper
4 c popped popcorn
salt and pepper

In a large bowl, combine the butter, cheddar cheese powder, mustard powder, cayenne pepper and the popcorn. Season with salt and pepper, to taste and toss to combine. Serve immediately.