Pulled Pork Sandwich

This isn't my first pulled pork sandwich recipe. I'm sure it won't be my last. It's very tasty, and I feel a bit bad that I don't know exactly where it came from. It was given to me in a book for my last birthday by a good friend of mine. So pulled pork sandwich recipe-maker, wherever you are, here's to you!

Pulled Pork Sandwiches
Courtesy of ???

2 1/2 tablespoons brown sugar, divided
1 tablespoon paprika
1 teaspoon chili powder
1 teaspoon ground cumin
1 teaspoon black pepper
1 boneless pork butt or shoulder (about 2 1/2 pounds), trimmed
1 cup chicken broth
2 tablespoons cider vinegar
2 tablespoons ketchup
Hamburger buns

In a small bowl, stir together 1 tablespoon of the sugar, the paprika, chili powder, cumin and pepper; set aside.

Lay pork on work surface and sprinkle on all sides with spice rub; rub well into meat. Wrap in plastic wrap and refrigerate for 1 hour or overnight.

Unwrap pork and place in slow cooker with chicken broth. Cover and cook on HIGH for 6 hours or LOW for 8 hours. Remove pork from slow cooker and cut into large chunks; let stand for 20 minutes or until cook enough to handle.

While pork is cooling, pour cooking liquid into a fat separator. Pour de-fatted liquid into small saucepan. Heat over medium-high heat. Whisk in vinegar, ketchup and remaining 1 1/2 tablespoons brown sugar. Cook until sugar has dissolved, about 2 minutes; set aside.

Using forks or your hands, pull meat into shreds, discarding excess fat, and place in bowl. Stir in sauce and put 1/2 cup meat on each bun. Serve immediately.