321 Ribs In Oven

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Total Time 2 hours 31 minutes
Servings 8 servings

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My 321 ribs are a firm family favorite. They’re cooked low and slow, revealing tender, fall-off-the-bone meat that MELTS in your mouth. Use my classic 3-2-1 method, or bake them in the oven!

321 ribs.

My method for 321 ribs in the oven

Arman Liew

When most people think of 3-2-1 ribs, they picture a smoker running all afternoon. While I love (and occasionally make) the traditional method, it’s not always practical, so I adapted it for the oven.

My version keeps everything I love about classic 321 ribs- fall-apart tender meat, a sticky caramelized barbecue glaze, and that low-and-slow flavor- but gets them on the table in about half the time. It’s become my go-to whenever my partner or I are craving barbecue without spending the whole day tending a smoker. Here’s why I prefer the oven version:

  • All the flavor in less time. You still get tender, juicy ribs with a sticky, caramelized finish in about half the time (3 hours versus 6 hours!).
  • Mostly hands-off. Once the ribs are in the oven, there’s very little left to do until it’s time to glaze them.
  • No smoker needed. Everything happens in the oven, so anyone can make restaurant-worthy ribs at home. 

Come make these ribs with me.

3-2-1 ribs.

Key ingredients

Here’s what you’ll need, along with my kitchen notes. Full measurements are in the recipe card below.

  • Pork ribs. I always use baby back ribs because they’re leaner, meatier, and cook faster than spare ribs. Try to choose racks that are similar in size so they cook evenly. If the thin membrane on the bone side is still attached, remove it before seasoning for the most tender ribs. 
  • Mayonnaise. My secret ingredient! Mayo helps the dry rub stick to the ribs and adds extra moisture and richness. 
  • Rib rub. For this recipe, I used a mix of brown sugar, smoked paprika, garlic powder, onion powder, chili powder, and kosher salt and black pepper. If you have a pre-made dry rub you like, use it. 

For the marinade:

  • Pineapple juice. This tenderizes the ribs and adds a mild, tangy, sweet flavor. Apple juice or even apple cider vinegar would make a good substitute. 
  • Butter. For essential fat in the marinade. Oil also works. 
  • Brown sugar. I add just a pinch to help the ribs’ exterior caramelize.
  • Honey. For sticky sweetness. Maple syrup also works. 
  • Barbecue sauce. For a smoky and tangy flavor. I used my sugar-free BBQ sauce, but any sauce can be used. 

How to make 321 ribs in the oven

rack of ribs and seasonings on a plate.

Prep. Preheat the oven and line a baking sheet with foil. Combine the rub ingredients. 

seasoned rack of pork ribs.

Season the ribs. Cover both sides of the ribs in mayo and the dry rub mixture. 

baked seasoned rack of ribs.

Bake. Bake the rack of ribs until they’re mostly done. In the meantime, stir together the marinade. 

basted rack of pork ribs.

Baste and broil. Remove the ribs from the oven, discard the foil, and brush them with the liquid marinade. Broil them until caramelized. 

Arman’s recipe tips

  • Use a meat thermometer. I look for an internal temperature of 190-205°F. That’s when the connective tissue has broken down, and the ribs are perfectly tender. 
  • Cook low and slow. It can be tempting to turn up the oven, but don’t. Low, gentle heat is what makes the ribs tender enough to pull apart with a fork. 
  • Let the ribs rest. Tent them loosely with foil and let them rest for 10 minutes before slicing. This helps the juices redistribute, so every bite stays moist. 
  • Smoking them instead? I like using hickory, cherry, or pecan pellets. They add just enough smoky sweetness without overpowering the pork. 

Frequently asked questions

Are 3-2-1 ribs really fall-off-the-bone?

They are! If that’s your kind of rib, you’re going to love this recipe. The low-and-slow cooking does all the hard work, leaving you with ribs that pull away from the bone with barely any effort.

Why are my ribs still tough?

Honestly, they probably just need a little longer. Every rack is slightly different, so don’t panic if they’re not perfectly tender right on schedule. Keep cooking them low and slow, and they’ll get there.

Can you overcook ribs?

Yes. There is a sweet spot. Leave them in the oven for too long, and they’ll eventually start to dry out. I usually start checking them toward the end of the cooking time instead of relying solely on the clock.

smoked 321 ribs.
321 ribs recipe.

321 Ribs

5 from 42 votes
My family cannot resist these 321 pork ribs. They are cooked low and slow to achieve melt-in-your-mouth meat. Smoker and oven instructions. Watch the video below to see how I make it in my kitchen!
Servings: 8 servings
Prep: 1 minute
Cook: 2 hours 30 minutes
Total: 2 hours 31 minutes

Video

Ingredients  

  • 1 rack pork ribs
  • 2 tablespoons mayonnaise

For the rub

  • 1/2 cup brown sugar
  • 1/4 cup smoked paprika
  • 1 tablespoon garlic powder
  • 1 tablespoon onion powder
  • 1 tablespoon ground pepper
  • 1 tablespoon salt

For the marinade

  • 1/2 cup pineapple juice
  • 1/2 cup butter
  • 1/3 cup brown sugar
  • 1 tablespoon honey
  • 2 tablespoons bbq sauce

Instructions 

  • Preheat the oven to 135C/275F. Line a large baking tray with tin foil.
  • Make the rub by mixing the brown sugar, smoked paprika, garlic powder, onion powder, black pepper, and salt.
  • Rub the mayonnaise all over the ribs. Season with the rub on both sides.
    seasoned rack of pork ribs.
  • Place the ribs on a baking rack, rib side up. Cover the rack with tin foil and bake for 2 ½ hours.
    seasoned rack of pork ribs.
  • While the ribs are baking, whisk together the pineapple juice, butter, brown sugar, honey, and BBQ sauce to make the marinade.
  • Once the ribs are cooked, remove them from the oven and discard the tin foil. Generously brush both sides with the marinade.
    basted rack of pork ribs.
  • Turn the broiler setting on and broil the ribs for 4 minutes.

Notes

Smoker method: Start by rubbing the ribs with mayonnaise and dry rub. Smoke the ribs meat-side up, uncovered, for 3 hours. Cover the ribs with foil and steam them for 2 hours. Finally, remove the foil and brush them with the marinade. Cook the ribs on the grill (lid on) at 225 degrees for 1 hour, applying the marinade every 10 to 15 minutes. 
TO STORE: Let the ribs cool completely, then store them in an airtight container in the fridge for up to 1 week. 
TO FREEZE: Wrap the leftovers in foil, place them in a freezer bag, and freeze them for up to 6 months. 
TO REHEAT: Place the ribs in an oven-safe pan, cover them with foil, and bake them at 250F until warm.
 

Nutrition

Serving: 1servingCalories: 384kcalCarbohydrates: 17gProtein: 19gFat: 27gSodium: 987mgPotassium: 425mgFiber: 2gSugar: 5gVitamin A: 1960IUVitamin C: 2mgCalcium: 42mgIron: 2mgNET CARBS: 15g
Course: Main Course
Cuisine: American
Author: Arman Liew
Tried this recipe?Give us a shout at @thebigmansworld or tag #thebigmansworld!

More foolproof pork recipes

Originally updated January 2023

Arman Liew

I’m a three time cookbook author, culinary school graduate, and writer, and passionate about creating easy and healthier recipes. I believe you don’t need to be experienced in the kitchen to make good food using simple ingredients that most importantly, taste delicious.

5 from 42 votes (34 ratings without comment)

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Comments

  1. 5 stars
    My husband and I made your 321 ribs and they were delicious and so very tender. They are a keeper and it is so good to try different recipes. I thought about a spatchcock chicken recipe that we do and I will try the rub on that. My 95 year old Mom liked them as well. We have never cooked ribs with the meat side down but we followed the recipe in the oven exactly as written. The marinade was a nice finishing touch as well. Thank you Arman.

  2. 5 stars
    When you read write up at beginning it states chili powder and kosher salt in rub. But when scrolling down to recipe ingredients chili powder is not listed. When u click on highlighted salt, it brings you to Amazon and iodized salt. I am a little confused . I would love to try recipe, could you please update it? Thank you

  3. 5 stars
    These are the best ribs I have ever made!! I have made the recipe twice for company and both times they were hands down, the tenderest most flavorful ribs ever! I kept the mayo a secret until the last time when I had so many requests for the recipe. I am thinking that is the key to the success!!

  4. 5 stars
    great rib cooking method, thank you, it’s been so long since I’ve made these that I don’t even remember my method, this will work!