This gets rave reviews whenever I serve it:

Pork Butt Slow Cooker Recipe

1/4 cup low-sodium soy sauce
3 TBS. ketchup
3 TBS. honey
2 tsp. jarred or fresh minced garlic
2 tsp. grated peeled fresh ginger (or powdered if you don't have fresh)
1 tsp. dark sesame oil
1/2 tsp. five spice powder or seasoned salt
1/4 cup hoisin sauce

2 lb. Boston Butt (trimmed) Boston butt

1/2 cup chicken broth

Combine first 8 ingredients in a small bowl, stirring well with a whisk. Place in a large zip top plastic bag. Add pork to the bag. Marinate in refrigerator at least 2 hrs. or overnight, turning occasionally. Place pork and marinade in an electric slow cooker. Cover and cook on low for 8 hrs.
Remove pork from slow cooker using a slotted spoon; place on a cutting board or work surface. Cover with aluminum foil; keep warm.

Add broth to sauce in slow cooker. Cover and cook on high for 30 minutes or until sauce thickens. Shred pork with 2 forks; serve with sauce.