Recipes Ingredients Meat & Poultry Pork Recipes Slow-Cooker Sweet-and-Sour Country Ribs 3.5 (339) Close Prep Time: 15 mins Total Time: 6 hrs 15 mins Servings: 8 Start these ribs in the morning, and they'll be perfectly tender by dinnertime. Directions In slow cooker, whisk together ketchup, sugar, vinegar, mustard powder, cayenne, 1 teaspoon salt, and 1/2 teaspoon pepper. Add ribs to slow cooker, and toss with sauce. Arrange ribs, bone side up, in a single row. Cover; cook on high, 6 hours (or on low, 10 hours). Serve ribs drizzled with pan juices and, if desired, barbecue sauce. Cook's Notes Oven method: Preheat oven to 350 degrees. In step 1, use a 5-quart Dutch oven or ovenproof pot with a tight-fitting lid; add 1 cup water. Cover; bake until ribs are tender, 2 1/2 to 3 hours. Proceed with step 3.