Ingredients:
Pork shoulder (aka Boston Butt)


Preparation:
Cook at 250F for 1.5hrs per pound of pork. When internal temp reaches 170F, double wrap in foil.
When the pork reaches an internal temperature of 195F-200F, rest the pork for 2 to 4 hours.
Expect to lose approximately half the weight of the raw pork through cooking+trimming.
Feeds approximately 2 people per pound (each person eating 2 quarter-pound pulled pork sandwiches)


Example:
You need to feed 10 people.
Get a 10 pound pork shoulder. It will be ~5 pounds of edible pork after trimming/cooking. Enough for 10 people to each eat 2 quarter-pound pulled pork sandwiches.
Will need to cook for approximately ~15 hours total.


Food Safety (https://ask.usda.gov/s/article/To-what-temperature-should-I-cook-pork):
Cook all raw pork steaks, chops, and roasts to a minimum internal temperature of 145°F (62.8 °C) as measured with a food thermometer before removing meat from the heat source. For safety and quality, allow meat to rest for at least three minutes before carving or consuming.