OK - we grew up with these as kids. At halloween we would pretend they were monster bits.
2 cups each of: shreddies, cheerios, pretzles
1/2 cup of unsalted peanuts (optional)
1/2 cup butter
1/2 cup Worcestershire sauce
to taste: celery salt, garlic powder, onion salt, paprika
Melt the butter, add the worcestershire sauce and spices. Mix well.
In a large metal roasting dish, mix the dry cereal. Pour over the flavouring, and stir well.
Roast in the oven at the lowest temp (about 75-100F) for several hours, stirring about every 30 minutes until the shreddies are crunchie again.
Stores well in a large ziplock bag.