No authentic Vietnamese family dinner is complete without a massive, communal bowl of soup sitting right in the center of the table. While Canh Chua Tôm (shrimp sour soup) gets all the fame online, Canh Sườn Non Dưa Chua (Sour Pork Rib Soup with Pickled Mustard Greens) is the ultimate weekday comfort food. The combination of melt-in-your-mouth pork riblets with the sharp, tangy crunch of pickled mustard greens creates a broth that is deeply savory, sour, and incredibly appetizing. It cuts through the richness of caramelized meats perfectly.
Memories of Home: The Food We Actually Ate
Growing up as an immigrant kid, this was the exact type of soul food that made regular appearances on our dinner table. While people out there think we ate restaurant dishes like Phở every day, the reality was a hot pot of rice, a savory braise, and a giant bowl of this comforting soup. You would spoon the tangy broth and tender ribs right over your rice, mixing everything together. It is exactly the kind of “food at home” that leaves you feeling completely satisfied and connected to your roots.
Things to Know Before You Start
- The Smart Instant Pot Shortcut: Traditional pork bone broths require hours of simmering and continuous skimming on the stovetop. To make this a realistic weeknight meal, we use the Instant Pot to pressure-cook the pork riblets to absolute tenderness in just 25 minutes, creating a rich base stock instantly.
- The Parboil Rule: Never skip parboiling your ribs. Boiling them for a few minutes first and rinsing them under cold water removes all the impurities and scum, which guarantees your final soup broth is beautifully clear.
- The Two-Stage Tomato Trick: We add half of the tomato wedges early on so they cook down completely to flavor and color the broth. The other half goes in right at the very end so they retain their fresh shape, bite, and vibrant color.
Ingredients and Substitutions
- Pork Riblets: Cut into small, bite-sized pieces. Look for pieces with a good amount of meat on the bone.
- Pickled Mustard Greens (Dưa Cải Chua): Readily available in packages at Asian grocery stores. Make sure to rinse them well under cold water to wash away excess brine saltiness while keeping their great sour crunch.
- Fresh Tomatoes: Cut into wedges. They provide a beautiful color contrast and natural acidity.
- Aromatics: Finely chopped shallots and minced garlic to sauté the base, plus a whole onion and a small chunk of rock sugar for the pressure cooker stock.
- Seasonings: Premium fish sauce and chicken bouillon powder to bring out the depth of the soup.
- Garnish: Finely sliced green onion tops for a pop of freshness.
Step-by-Step Instructions
- Clean and Parboil the Riblets: Throw your cut pork riblets into a pot of boiling water for 3 to 5 minutes to let any muddy impurities and scum rise to the top, then drain the meat completely and give the riblets a thorough rinse under cold running water until they are perfectly clean.
- Pressure Cook the Stock: Transfer the rinsed riblets into the inner pot of your Instant Pot along with water, a pinch of salt, a whole peeled onion, and a small piece of rock sugar, then seal the lid and pressure cook on high for 25 minutes before venting the steam and reserving the rich pork stock.
- Sauté the Base: Heat a little neutral oil in a separate large soup pot over medium heat, sauté your chopped shallots and minced garlic until highly fragrant, then add your roughly chopped and rinsed pickled mustard greens along with the tender pork riblets from the Instant Pot, seasoning everything directly with fish sauce and chicken bouillon.
- Simmer and Finish: Toss half of your tomato wedges into the pot and pour in the reserved pork stock from the Instant Pot, bringing the soup to a gentle simmer while using a fine mesh strainer to skim any foam from the surface, then let it bubble until the greens are tender before dropping in the remaining tomato wedges for the last minute to heat through and garnishing with green onions.
Tips for Success and Mistakes to Avoid
- Rinse the Greens: Packaged pickled greens sit in a very salty brine. If you don’t chop and rinse them well under cold water before cooking, your final soup broth will turn out way too salty instead of pleasantly tangy.
- Skim the Foam: As the combined soup comes to a final boil, some natural foam will rise to the top. Keep a fine-mesh strainer handy to skim it off so your presentation stays pristine.
How to Serve
Ladle the soup into a large, family-style bowl, ensuring every serving has plenty of the tender pork riblets, tangy greens, and tomato wedges. Pour generous spoonfuls of the hot, sour broth directly over bowls of fresh white rice.
Make-Ahead, Storage and Reheating Tips
- Great for Meal Prep: This soup actually tastes even more harmonious the next day as the pickled greens continue to infuse their pleasant tang into the pork broth.
- Storage: Keep any leftovers in an airtight container in the fridge for up to 3 to 4 days.
- Reheating: Simply pour the soup into a small pot and bring it to a boil on the stovetop, or microwave it in a microwave-safe bowl until steaming hot.
FAQs
Can I make this entirely on the stovetop without an Instant Pot? Absolutely! Instead of pressure cooking, just simmer the parboiled ribs in a covered pot with the onion and rock sugar over medium-low heat for about 45 to 60 minutes until the meat is tender, then proceed with the rest of the recipe.
Where do I find pickled mustard greens? You can find them in the refrigerated or vacuum-sealed vegetable sections of any Asian supermarket. They are usually labeled as “Pickled Mustard Greens” or Dưa Cải Chua.
Pro Tip: Serve with Cá Kho Tộ (Vietnamese Caramelized Clay Pot Fish) for a family meal.
Comforting Sour Pork Rib Soup (Canh Sườn Non Dưa Chua)
Ingredients
For the Pork Stock:
- 2-3 lbs Pork riblets cut into small bite-sized pieces
- 1 whole Onion peeled
- 2-3 pieces Rock sugar
- 1 tsp Salt
- Water
For the Soup:
- 1 package Store-bought mustard greens (Chicken brand) rinsed and roughly chopped
- 2-3 Tomatoes cut into wedges
- 2 Shallots finely minced
- 3 cloves Garlic finely minced
- 1 tbsp Neutral oil
- 2 tbsp Fish sauce
- 1 tsp Chicken bouillon
Instructions
- Clean and Parboil the Riblets: Throw your cut pork riblets into a pot of boiling water for 3 to 5 minutes to let any muddy impurities and scum rise to the top, then drain the meat completely and give the riblets a thorough rinse under cold running water until they are perfectly clean.
- Pressure Cook the Stock: Transfer the rinsed riblets into the inner pot of your Instant Pot along with water, a pinch of salt, a whole peeled onion, and a small piece of rock sugar, then seal the lid and pressure cook on high for 25 minutes before venting the steam and reserving the rich pork stock.
- Sauté the Base: Heat a little neutral oil in a separate large soup pot over medium heat, sauté your chopped shallots and minced garlic until highly fragrant, then add your roughly chopped and rinsed pickled mustard greens along with the tender pork riblets from the Instant Pot, seasoning everything directly with fish sauce and chicken bouillon.
- Simmer and Finish: Toss half of your tomato wedges into the pot and pour in the reserved pork stock from the Instant Pot, bringing the soup to a gentle simmer while using a fine mesh strainer to skim any foam from the surface, then let it bubble until the greens are tender before dropping in the remaining tomato wedges for the last minute to heat through and garnishing with green onions.
Notes
- The Parboil Rule: Never skip parboiling your pork ribs. Boiling them for 3 to 5 minutes first and rinsing them thoroughly under cold running water removes all the muddy impurities and scum, which guarantees your final soup broth is beautifully clear.
- Rinse the Greens thoroughly: Packaged pickled mustard greens sit in a very salty brine. If you don’t chop and rinse them well under cold water before cooking, your final soup broth will turn out way too salty instead of pleasantly tangy.
- The Two-Stage Tomato Trick: Add half of your tomato wedges early on so they cook down completely to flavor and color the broth. Save the other half to drop in during the very last minute of cooking so they retain their fresh shape, bite, and vibrant color.