Slow Cooker Pineapple Molasses Spare Ribs

This slow cooker spare ribs recipe is the definition of set-it-and-forget-it. Sweet pineapple rings and spicy ginger mingle with a dark molasses garlic BBQ sauce as the ribs cook low and slow until they’re fall-apart tender.

The result is a sticky, caramelized, deeply savory-sweet main that tastes like it took hours of hands-on work — but the slow cooker does everything while you go about your day. Just layer the ingredients, pour the sauce, and walk away. Eight hours later, dinner is ready.

Pineapple and pork are a classic pairing, and when you add molasses and garlic, the flavor becomes irresistible. The pineapple rings soften and caramelize in the slow cooker, infusing the ribs with a gentle sweetness that balances the rich, smoky BBQ sauce.

The ginger adds a bright, warm note that cuts through the fat. This recipe is perfect for busy weeknights or casual weekend gatherings. You’ll need just 10 minutes of prep, and the slow cooker does the rest. Serve the ribs with extra sauce, coleslaw, or cornbread for a complete meal.

Ingredients

Why this recipe works

Slow cooking is the key to transforming tough, meaty spare ribs into succulent, pull-apart pork. The low, steady heat breaks down the collagen in the meat, turning it into gelatin that keeps the ribs moist and tender. The long cooking time also allows the flavors of the pineapple, ginger, and molasses garlic sauce to penetrate deep into the meat, creating a complex, layered taste that you can’t get from quick cooking.

The combination of pineapple and molasses is a match made in heaven. Pineapple provides natural sweetness and a hint of acidity, which helps balance the rich, slightly bitter molasses. The garlic adds savory depth, while the ginger brings a subtle warmth.

As the sauce simmers, it thickens and coats the ribs in a glossy, sticky glaze that clings beautifully to every bite. The result is a dish that’s both comforting and exciting, with a perfect balance of sweet, savory, and tangy.

Notes and substitutions

For the best results, use St. Louis style spare ribs, which are meatier and more flavorful than baby back ribs. They hold up well to long cooking and become incredibly tender. If you prefer baby back ribs, reduce the cooking time to 6-7 hours on low, as they are leaner and can dry out if cooked too long. Look for ribs that are well-marbled with a good amount of meat on the bone.

The molasses garlic BBQ sauce is the star of this dish. You can use a store-bought sauce and add extra molasses and garlic powder, or make your own from scratch. If you have time, try a homemade sauce with ketchup, molasses, apple cider vinegar, Worcestershire sauce, and garlic.

The pineapple rings should be in juice, not syrup, to keep the dish from becoming overly sweet. Fresh ginger is essential — don’t substitute dried ginger, as it won’t provide the same bright, pungent flavor.

• St. Louis style spare ribs: Baby back ribs (reduce cook time to 6-7 hours on low)
• Pineapple rings in juice: Fresh pineapple rings (add 1/4 cup water to the slow cooker)
• Molasses garlic BBQ sauce: Your favorite smoky BBQ sauce mixed with 2 tbsp molasses and 1 tsp garlic powder

Equipment

• 6-quart slow cooker
• Cutting board
• Chef's knife
• Measuring cups and spoons
• Tongs
• Serving platter