Dinner · Part 3 of 3: Tips & recipe card

Slow Cooker Pineapple Molasses Spare Ribs Tips, FAQ & printable recipe

Name: Slow Cooker Pineapple Molasses Spare Ribs
Prep time: 10 min
Cook time: 8 h
Total time: 8 h 10 min
Cuisine: American
Ingredients: 4 lb St. Louis style pork spare ribs; 1 can (20 oz) pineapple rings in juice; 2 tbsp freshly grated ginger; 1 1/2 cups molasses garlic BBQ sauce

By Clara Weller · Oct 28, 2026

Slow cooker pineapple molasses spare ribs with caramelized pineapple rings and glossy sauce

Prep: 10 min
Cook: 8 h
Total: 8 h 10 min
Serves: 6

Tips for success

For the most flavorful ribs, choose a BBQ sauce that is thick and slightly smoky. If you want to boost the molasses flavor, add an extra tablespoon of molasses to the sauce before pouring it over the ribs. You can also add a splash of apple cider vinegar to brighten the sauce.

For a bit of heat, stir in a teaspoon of hot sauce or a pinch of cayenne pepper. The pineapple rings are not just a garnish — they soak up the sauce and become deliciously soft and sweet, so be sure to serve them with the ribs.

To get a caramelized, slightly charred exterior on the ribs, you can place them under the broiler for 3-4 minutes after slow cooking. This is optional but adds a nice texture. If you do this, watch them closely to avoid burning.

Leftover sauce can be stored in an airtight container in the refrigerator for up to a week. Use it to baste grilled chicken or pork, or stir it into baked beans for a sweet-savory kick.

Variations

Spicy Pineapple Ribs: Add 1-2 teaspoons of chipotle powder or a minced jalapeño to the sauce for a smoky heat. Serve with pickled jalapeños for extra kick.
Hawaiian Style: Replace the molasses garlic BBQ sauce with a mixture of ketchup, brown sugar, soy sauce, and pineapple juice. Add diced bell peppers for a tropical twist.
Asian-Inspired: Swap the BBQ sauce for hoisin sauce and add a splash of rice vinegar and sesame oil. Garnish with sliced green onions and sesame seeds.
Smoky Bourbon Ribs: Stir 2 tablespoons of bourbon and 1 teaspoon of liquid smoke into the sauce before pouring over the ribs. The alcohol cooks off, leaving a deep, smoky flavor.

Storage and make-ahead

Fridge: Store leftovers in an airtight container in the refrigerator for up to 4 days. Reheat gently to avoid drying out.
Freezer: Freeze cooled ribs in a freezer-safe container for up to 3 months. Thaw overnight in the refrigerator before reheating.
Reheat: Reheat in a 350°F (175°C) oven for 10-15 minutes, or in the microwave in 30-second bursts until hot.

Store leftover ribs in an airtight container in the refrigerator for up to 4 days. The ribs can be reheated in the microwave or in a 350°F (175°C) oven for 10-15 minutes, or until heated through. The sauce will thicken as it cools, so you may want to add a splash of water or broth when reheating to loosen it.

You can prepare the ribs up to 24 hours in advance by layering the ribs, pineapple, ginger, and sauce in the slow cooker insert, then covering and refrigerating. When ready to cook, place the insert in the slow cooker and cook on low for 8 hours, adding about 30 minutes to the cooking time to account for the chilled ingredients.

Serving ideas

Serve the ribs hot, with the pineapple rings spooned over the top. They pair beautifully with coleslaw, cornbread, or creamy mashed potatoes.

For a lighter side, try a crisp green salad with a tangy vinaigrette to cut through the richness. The sweet-savory sauce also goes well with roasted vegetables, such as Brussels sprouts or sweet potatoes.

For a casual gathering, set out the ribs on a large platter and let everyone help themselves. Provide plenty of napkins — they’re messy in the best way.

You can also shred the meat and pile it onto slider buns for a fun, sandwich-style meal. Leftover ribs are fantastic chopped and tossed with barbecue sauce for a next-day sandwich or taco filling.

Frequently asked questions

Can this recipe be made with baby back ribs instead of spare ribs?

Yes, baby back ribs work well, but they are leaner and cook faster. Reduce the cooking time to 6-7 hours on low, and start checking for tenderness at the 6-hour mark. The internal temperature should still reach at least 145°F (63°C) for safety.

Why are the ribs not falling off the bone after 8 hours?

If the ribs are still tough, they may need more time. Some slow cookers run cooler than others. Continue cooking on low for another 1-2 hours, checking every 30 minutes. Also, make sure the ribs are submerged in the sauce as much as possible, and avoid lifting the lid during cooking.

Can the cooking time be reduced by using high heat?

Yes, you can cook on high for 4-5 hours, but the meat may not be as tender as with low heat. High heat can also cause the sauce to reduce too much and possibly burn. If using high, check the ribs at the 4-hour mark and add a little water if the sauce looks too thick.

What can be used instead of pineapple rings?

If pineapple rings are not available, use pineapple chunks or crushed pineapple. The texture will be different, but the flavor will still be great. You can also use fresh pineapple slices, but add 1/4 cup of water to the slow cooker to ensure enough liquid.

How can the sauce be thickened?

If the sauce is too thin after cooking, remove the ribs and keep them warm. Pour the sauce into a saucepan and simmer over medium heat for 5-10 minutes, or until it reaches the desired consistency. You can also mix 1 tablespoon of cornstarch with 2 tablespoons of cold water and stir it into the sauce, then simmer until thickened.

Recipe card

Slow Cooker Pineapple Molasses Spare Ribs

Prep 10 minCook 8 hTotal 8 h 10 minServes 6

Ingredients

4 lb St. Louis style pork spare ribs
1 can (20 oz) pineapple rings in juice
2 tbsp freshly grated ginger
1 1/2 cups molasses garlic BBQ sauce

Instructions

Place the St. Louis style pork spare ribs in the slow cooker insert, arranging them in a single layer if possible, or slightly overlapping. Scatter the pineapple rings over the top of the ribs, then sprinkle with the freshly grated ginger.
Pour the molasses garlic BBQ sauce evenly over the ribs and pineapple, making sure to coat the top surface. Use tongs to gently lift and separate the ribs so the sauce drips between them.
Cover the slow cooker and cook on LOW for 8 hours, or until the meat is fork-tender and nearly falling off the bone. Avoid opening the lid during cooking to maintain steady heat. Let it rest for 3 minutes before slicing.
Insert an instant-read thermometer into the thickest part of the meat, avoiding bone. The internal temperature should read at least 145°F (63°C) for food safety. Let the ribs rest in the slow cooker with the heat off for 10 minutes before serving.
Using tongs, carefully transfer the ribs to a serving platter. Spoon some of the pineapple and sauce from the slow cooker over the top. Serve hot, with extra sauce on the side if desired.

Contains: gluten

Estimated nutrition per serving

Calories: 620
Protein: 42 g
Carbohydrates: 35 g
Fat: 33 g

Automatic estimate from the ingredient list, not laboratory-verified.

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This recipe is based on a short cooking video and is published under the pen name Clara Weller. It was checked before publication, but errors can slip through. Nutrition, when shown, is an estimate. Read more in our editorial policy and on our food safety page.