1. Mix 1 cup paprika, 3 1/2 tablespoons sugar, and 1/2 teaspoon onion powder in a small bowl. Apply to each pork chop.
2. For the sauce: Combine all of the sauce ingredients in a large saucepan or Dutch oven.
3. Over high heat, bring ingredients to a boil, stirring frequently to prevent sticking.
4. Once sauce comes to a boil, reduce temperature to low and simmer, uncovered, for at least 2 hours.
5. Place pork chops in a large freezer safe plastic bag. Pour 2 cups of Neely's BBQ sauce into bag. Marinate in refrigerator for 8 hours.
6. Place pork chops on grill and cook until internal temperature is 160°F
7. Reapply BBQ sauce to pork chops prior to serving.