Slow Cooker Ribs

4 pounds pork baby back ribs*
1/4 cup barbecue sauce (try this recipe)
1/3 cup dark brown sugar
1 Tablespoon paprika
1-1/2 teaspoons chili powder
1-1/2 teaspoons salt
1 teaspoon ground cumin
3/4 teaspoon black pepper
3/4 teaspoon white pepper **
3/4 teaspoon ground oregano
1/2 teaspoon cayenne pepper
1/4 teaspoon sugar

*This works well with any kind of pork or beef ribs, even the (cheap) boneless country style.
**If you don't have white pepper, just use all black pepper.

1. Trim excess fat from ribs.
   
2. Combine dry ingredients and rub over all surfaces of ribs.
   
3. Place ribs in slow cooker, standing on their edge with the meaty side out.
   Cook on low for about 8 hours.
   
4. Remove ribs from slow cooker and brush with barbecue sauce.