Yeah, for your own sake it should probably stay a mystery. But I had to know…
“Your movie theater butter has no butter in it, but it does have partially hydrogenated soybean oil (a.k.a. trans fats), beta carotene (a coloring, makes carrots orange), tertiary Butylhydroquinone or TBHQ (synthetic preservative that keeps the color and texture from changing as the product sits), polydimethylsiloxane (silicone based chemical that prevents foaming), and, wait for it, buttery flavoring, ”
Keep me away from the homemade Chex Mix. We’ll be fighting over it. If you want a small, cheapish batch of something similar in flavor - melt some butter in a skillet, pour in some Cheerios or the store brand equivalent, stir for a moment, add some Worcestershire sauce, garlic powder, onion powder, pepper, bit of salt if you need it, and stir it around until the cereal is toasty and flavorful. You could add some cayenne if you like it spicy.
There’s a small chain restaurant called El Patio-- there are three of them that I know of in my general area, and I’ve been to all three. They serve really good, inexpensive Mexican meals, and their complimentary salsa is like crack. I don’t know what they put in it- crack, maybe? Many times I’ve left there full to bursting because I ate so much of the free (freshly fried) tortilla chips and salsa before I got my entree.
Yeah homemade Chex Mix is a huge temptation for me. A family member give me a big Ziploc freezer bag of it for Christmas and it only lasts a couple days. Hers has 2 types of Chex, pretzels, cashews, and some sort of seasoning that I assume is Worcestershire.