Slow Cooker Barbecued Baby Back Ribs

1 1/3 C. ketchup
3/4 C. chili sauce
2/3 C. packed brown sugar
1/4 C. cider vinegar
3 Tbsp. Worchestershire sauce
3 Tbsp. Dijon mustard
2 Tbsp. lemon juice
1 Tbsp. liquid smoke
4 lb. pork baby back ribs, cut into 3in. sections
3/4 tsp. salt
1/4 tsp. pepper

In a medium bowl, mix first 8 ingredients and set aside.
Spray slow cooker with nonstick cooking spray. Sprinkle ribs with salt and pepper. Place in slow cooker. Spoon about 1 1/2C. sauce evenly over sections.
Cover and cook on low setting 6-7hrs or on high 3-31/2hrs. or until almost tender.
Remove pork from cooker; place in shallow dish. Drain and discard liquid from cooker. Return pork to cooker and spoon remaining sauce evenly over each section. Cook on low setting an addtional hour or until meat easily comes off the bone when stuck with a fork.