My very absolutely positively favorite Christmas treat is Chex Mix. I only allow myself to make it between Thanksgiving and Abby's Birthday in January, both to preserve its specialness and my health. My recipe:
3 cups rice chex (generic!)
3 cups corn chex (")
(or 6 cups crispix, but it's more expensive)
3 cups wheat chex (alas, no generic)
1 handful stick pretzels
1 cup cashews
Mix together in a big roaster.
4 T Lea and Perrins Worcestershire (it's worth it)
1 stick margarine
1 tsp Lawrys Seasoning Salt
1/4 tsp garlic salt
Microwave together to melt the butter and stir to combine.
Pour over mixed cereal, stirring to coat.
Bake at 250 for 1 hour, stirring every 15 minutes.
Spread on paper towels to cool.