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Recipe

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Serves 4Prep 20 minCook 5H30 minTotal 8H30 min

Ingredients

• 1 rack baby back pork ribs, approximately 2½–3 pounds or 1.1–1.4 kg
• 2 tablespoons light brown sugar
• 1 tablespoon smoked paprika
• 2 teaspoons sweet paprika
• 2 teaspoons kosher salt
• 1½ teaspoons garlic powder
• 1½ teaspoons onion powder
• 1 teaspoon ground black pepper
• ½ teaspoon chilli powder
• ½ teaspoon mustard powder

Method

1. Remove the membrane. Turn the ribs bone-side up. Slide a blunt knife under the thin membrane at one end of the rack. Grip the loosened section with a paper towel and pull it away. Removing the membrane allows the seasoning to contact the meat more directly.
2. Prepare the rub. Combine the brown sugar, smoked paprika, sweet paprika, salt, garlic powder, onion powder, black pepper, chilli powder, and mustard powder in a small bowl.
3. Season the ribs. Pat the ribs dry. Coat both sides evenly with the dry rub, pressing it into the surface. If time permits, leave the seasoned ribs covered in the refrigerator for 30 minutes or overnight. Bring them out while the slow cooker is prepared.
4. Cut the rack. Cut the ribs into two or three sections. This is a practical step. A whole rack may not fit correctly and should not be forced into the cooker.
5. Prepare the sauce. Stir together 1 cup of barbecue sauce, the apple cider vinegar, water, and mustard, if using. The vinegar provides acidity and the water prevents the sauce from becoming excessively concentrated during the long cook.
6. Load the slow cooker. Place the rib sections into a 5- to 6-quart slow cooker. Arrange them vertically or stack them, depending on the shape of the cooker. Pour the sauce mixture over the ribs.
7. Cook until tender. Cover and cook on LOW for 7–9 hours or HIGH for 4–5 hours . Avoid repeatedly lifting the lid. Each interruption releases heat and may extend the cooking time.
8. Check the texture. The ribs are ready when the meat has pulled back from the bones and a fork slides into the thickest section with minimal resistance. An instant-read thermometer should register well above the minimum safe temperature. A reading in the approximate 190–200°F (88–93°C) range is common for very tender ribs, but tenderness remains the primary test.
9. Transfer carefully. Line a baking tray with foil and lightly oil it. Use wide tongs or a large spatula to move the ribs to the tray. They may break apart during transfer. This is expected.
10. Apply the finishing sauce. Brush the ribs with the remaining ½ cup of barbecue sauce. For a thinner glaze, combine the sauce with one or two teaspoons of the cooking liquid.
11. Broil or grill. Place the ribs under a hot grill or broiler for 2–4 minutes, watching continuously. The sauce should bubble and darken at the edges. Sugar burns quickly, so do not leave the tray unattended.
12. Rest and serve. Rest the ribs for 5 minutes. Slice between the bones and serve with additional barbecue sauce if required.

Slow Cooker BBQ Ribs (Fall-Off-The-Bone)

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Definition

fall-off-the-bone (adjective): Describes ribs cooked until the connective tissue has broken down and the meat separates easily from the bone.

This slow cooker BBQ ribs recipe uses a dry rub, a low-and-slow cooking period, and a final high-heat glaze. The slow cooker provides tenderness. The oven or grill provides the concentrated sauce and caramelised edges.

The term “fall-off-the-bone” refers to texture. It is not a food-safety measurement. Pork ribs should reach at least 145°F (63°C) in the thickest part, away from the bone. For the softer texture required here, the ribs will generally reach a considerably higher temperature during the extended cooking period.

The method is suitable for baby back ribs. Spare ribs can also be used, but they may require additional cooking time and more space in the slow cooker.

Recipe

Servings: 4
Prep time: 20 minutes
Cook time: 8 hours 10 minutes
Total time: 8 hours 30 minutes
Cooking method: Slow cooker and oven
Category: Main course
Cuisine: American-style barbecue

Ingredients

For the ribs

• 1 rack baby back pork ribs, approximately 2½–3 pounds or 1.1–1.4 kg
• 2 tablespoons light brown sugar
• 1 tablespoon smoked paprika
• 2 teaspoons sweet paprika
• 2 teaspoons kosher salt
• 1½ teaspoons garlic powder
• 1½ teaspoons onion powder
• 1 teaspoon ground black pepper
• ½ teaspoon chilli powder
• ½ teaspoon mustard powder

For the cooking and glaze

• 1½ cups barbecue sauce, divided
• 2 tablespoons apple cider vinegar
• 2 tablespoons water
• 1 tablespoon yellow mustard, optional
• Cooking spray or neutral oil, for the baking tray

Method

1. Remove the membrane.
   Turn the ribs bone-side up. Slide a blunt knife under the thin membrane at one end of the rack. Grip the loosened section with a paper towel and pull it away. Removing the membrane allows the seasoning to contact the meat more directly.

2. Prepare the rub.
   Combine the brown sugar, smoked paprika, sweet paprika, salt, garlic powder, onion powder, black pepper, chilli powder, and mustard powder in a small bowl.

3. Season the ribs.
   Pat the ribs dry. Coat both sides evenly with the dry rub, pressing it into the surface. If time permits, leave the seasoned ribs covered in the refrigerator for 30 minutes or overnight. Bring them out while the slow cooker is prepared.

4. Cut the rack.
   Cut the ribs into two or three sections. This is a practical step. A whole rack may not fit correctly and should not be forced into the cooker.

5. Prepare the sauce.
   Stir together 1 cup of barbecue sauce, the apple cider vinegar, water, and mustard, if using. The vinegar provides acidity and the water prevents the sauce from becoming excessively concentrated during the long cook.

6. Load the slow cooker.
   Place the rib sections into a 5- to 6-quart slow cooker. Arrange them vertically or stack them, depending on the shape of the cooker. Pour the sauce mixture over the ribs.

7. Cook until tender.
   Cover and cook on LOW for 7–9 hours or HIGH for 4–5 hours. Avoid repeatedly lifting the lid. Each interruption releases heat and may extend the cooking time.

8. Check the texture.
   The ribs are ready when the meat has pulled back from the bones and a fork slides into the thickest section with minimal resistance. An instant-read thermometer should register well above the minimum safe temperature. A reading in the approximate 190–200°F (88–93°C) range is common for very tender ribs, but tenderness remains the primary test.

9. Transfer carefully.
   Line a baking tray with foil and lightly oil it. Use wide tongs or a large spatula to move the ribs to the tray. They may break apart during transfer. This is expected.

10. Apply the finishing sauce.
    Brush the ribs with the remaining ½ cup of barbecue sauce. For a thinner glaze, combine the sauce with one or two teaspoons of the cooking liquid.

11. Broil or grill.
    Place the ribs under a hot grill or broiler for 2–4 minutes, watching continuously. The sauce should bubble and darken at the edges. Sugar burns quickly, so do not leave the tray unattended.

12. Rest and serve.
    Rest the ribs for 5 minutes. Slice between the bones and serve with additional barbecue sauce if required.

Tips

• Use the membrane as a quality control point. If it remains attached, the underside of the ribs can become chewy.
• Do not add excessive liquid. Ribs release moisture during cooking. The slow cooker does not require the ribs to be submerged.
• Reserve sauce for the end. Sauce cooked for eight hours can become thin and lose its fresh flavour. A final layer produces a more defined glaze.
• Use a thermometer correctly. Insert it into the thickest part of the meat without touching bone. Bone can distort the reading.
• Handle the ribs with care. Extended cooking makes them fragile. Two spatulas are preferable to narrow tongs.
• Do not rely on colour. Pork may appear pink even when properly cooked. Temperature and texture are more reliable indicators.
• Allow for cooker variation. Slow cookers differ in temperature. Begin checking baby back ribs at seven hours on LOW.

The timing and finishing method are consistent with published slow cooker rib approaches from Rachel Cooks and Cafe Delites.

Variations

Spare ribs

Use spare ribs or St. Louis-style ribs when a meatier result is required. Cut the rack into smaller pieces if necessary. Allow up to one additional hour on LOW, checking for tenderness before removing.

Spicy ribs

Add ½ teaspoon cayenne pepper to the dry rub. Alternatively, replace 2 tablespoons of the barbecue sauce with a hot pepper sauce.

Honey barbecue ribs

Stir 2 tablespoons of honey into the finishing sauce. Apply this version only during the final broiling stage because honey can burn rapidly.

Smoky tomato ribs

Use a tomato-forward barbecue sauce and add ½ teaspoon of ground cumin to the rub. A small amount of liquid smoke may be added to the sauce, subject to the product instructions.

No-broiler finish

If a broiler or grill is unavailable, place the cooked ribs in a 425°F (220°C) oven for 8–10 minutes after brushing with sauce. The surface will set, but the edges may not char as strongly.

FAQ

Can I put frozen ribs in a slow cooker?

No. Use fully thawed ribs. Frozen meat may remain in an unsafe temperature range for too long while the slow cooker comes to temperature.

Should ribs be covered with sauce in the slow cooker?

They should be coated, but they do not need to be submerged. A moderate quantity of sauce maintains flavour without creating a diluted result.

Can I prepare these ribs the day before?

Yes. Cook the ribs until tender, cool them promptly, and refrigerate them in a sealed container. Reheat on a tray at 350°F (175°C), covered loosely with foil, then brush with sauce and broil briefly.

Why are my ribs tough?

The most common causes are insufficient cooking time, an overcrowded slow cooker, or ribs that were not cooked on a consistent setting. Continue cooking until the meat separates easily from the bone. Do not attempt to correct tough ribs by adding more sauce alone.

Can I use boneless country-style ribs?

Yes, but the cooking time may be shorter. Begin checking after 5–6 hours on LOW. The final texture will be different because boneless country-style ribs are usually cut from pork shoulder or loin rather than a rib rack.

Can I make the ribs without brown sugar?

Yes. Omit the brown sugar or replace it with 1 tablespoon maple syrup in the finishing sauce. The dry rub will be less sweet and may brown less quickly.

Storage

Refrigerate leftover ribs within two hours of cooking. Store them in a sealed container for up to three days. Reheat until steaming hot throughout. For best texture, reheat covered before applying fresh sauce and broiling briefly.