Pulled Pork

I got this recipe from my Mom. I'm not sure where she got it, but my Dad has tweaked it and honestly I like it better with his changes. We ended up doubling this recipe for our dinner party and still had a ton of leftovers.

Slow Cooker BBQ Pulled Pork

1 cup chopped onions
1 cup ketchup
1 3/4 cups barbecue sauce
2 Tbsp vinegar
2 Tbsp Worcestershire sauce
2 Tbsp brown sugar
1 tsp chili powder
1 tsp salt
1/2 tsp pepper
1/2 tsp garlic powder
3-4 lb boneless pork roast (I use tenderloin)

Combine all ingredients except pork in a slow cooker. When well mixed, add pork. Cover, cook on high for six hours. Shred the meat and return it to the sauce.