Slow Cooker Pulled Pork Barbeque

• 2 cups chopped celery
• 1 onion, chopped
• 1 cup barbeque sauce
• 1 cup ketchup
• 1/2 cup water

• 1 teaspoon garlic powder
• 1 teaspoon chili powder
• salt and ground black pepper to taste
• 1 (4 pound) pork shoulder roast
Directions
• Stir celery, onion, barbeque sauce, ketchup, water, garlic powder, chili powder, salt, and pepper together in a slow cooker. Place roast into the mixture.
• Cook on High for 5 hours.