When people say "pulled pork," they almost always mean pork butt — also called a Boston butt. Despite the name, it comes from the upper portion of the front shoulder, not the rear. The picnic shoulder sits just below it, closer to the leg. Both work, but they cook differently.
| Cut | Weight | Fat Marbling | Shape | Cook Time | Best For |
|---|---|---|---|---|---|
| Pork Butt (Boston Butt) | 6-10 lb | Heavy | Thick, blocky | 8-12 hr | Classic pulled pork, competition |
| Picnic Shoulder | 6-9 lb | Moderate | Tapered, with skin | 10-14 hr | Crispy skin, carnitas-style |
Pork butt is the go-to for pulled pork. The heavy marbling and thick fat cap keep it moist through a long cook, and the blocky shape cooks more evenly than the tapered picnic. If you are buying your first one, look for a bone-in butt in the 7-8 pound range — the bone adds flavor and gives you a built-in doneness indicator (when it wiggles freely, you are close).
Buying tip: Look for good marbling throughout the meat, not just a thick fat cap on top. The internal fat is what makes pulled pork juicy — the cap just protects the surface during the cook.