Couple of things....big aluminum pan on a warm grill. Open and close grill as needed.
Big aluminum pan with sterno underneath, and last but not least...a big ol crock pot.
Keep some finishing sauce handy to prevent drying.
Here's mine:
This is a recipe that has been in my family for over a century, so you can understand why I was reluctant to reveal it, even though I'm sure others have something similar - this one will make your pork butts come alive!!!!!
3 Quarts of Apple Cider Vinegar
1 cup Ketchup (Catsup)
5 oz. Worsty sauce
10 oz. French's yellow mustard
3/4 cup salt (I use sea salt but regular iodized is fine) - I also usually cut back on the salt
1/4 cup fresh ground black pepper
1/2 oz crushed red pepper
4 oz of your favorite hot sauce (I cut back on the red pepper and hot sauce depending on the audience and it doesn't affect flavor)
Mix all ingredients in a large pot and bring it to a boil. Once it boils it is ready for use as a mop or for canning.
Makes about 1 gallon, which is enough to mop a 70 pound pig.
I can it using the hot water bath method if necessary. This is a fantastic and tasty finishing sauce for minced or pulled pork. My relatives in Lexington, NC swear that my BBQ is better than anything they can buy in the self appointed capital of Southern BBQ!!!!
Good luck,
Bill