Watercress and Pork Rib Soup

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A cooling soup rooted in Traditional Chinese Medicine (TCM), this Watercress and Pork Rib Soup is perfect for warmer weather. Easy to make in the Instant Pot, nourishing, and full of umami.

a bowl of pork rib watercress soup on a white marbled top

Did you know Traditional Chinese Medicine (TCM) categorizes soups as “cooling” or “warming”? It sounds counterintuitive—after all, hot soup tastes…hot. But soups in a TCM context focuses on the soup’s effect on your overall “qi” and health status.

So, as the weather heats up, Watercress and Pork Rib Soup is my new go-to cooling soup when I want a nourishing, one-pot meal.

I know most people turn to salads in the spring and summer, but I’d rather hold on to my Instant Pot recipes a little longer because of how CONVENIENT it is.

So the fact that cooling soups exists and aligns with my culture? Heck, yeah! And of course, it’s delicious to boot.

Traditional Uses of Watercress

In traditional Chinese medicine (TCM), watercress is valued for its cooling properties and is often used to:

  • Clear heat from the body: Especially beneficial for dry throat, cough, or excess body heat.
  • Aid digestion: Helps promote a healthy gut and supports detoxification.
  • Improve skin health: Believed to help with acne and skin inflammation due to its detoxifying effects.

Cool stuff, right? (Pun intended.)

Key Tips for the Best Watercress and Pork Rib Soup

1. Wash Watercress Properly

Watercress grows in water and often carries fine dirt and sand in its stems. Wash it thoroughly–soak for 5-10 minutes and rinse 2-3 times until the water runs clear. This step ensures a grit-free soup!

2. Choose Between Short and Long Cooking Times

  • Short Cook Time (15-30 minutes): The watercress retains more of its bright green color and slight crunch, while the broth remains light and fresh.
  • Long Cook Time (2+ hours): The watercress completely softens, infusing the broth with a golden color and its signature slightly peppery flavor.

Both methods yield a delicious soup, so choose based on your preference (or time constraints)!

3. Remove Tough Stems

Watercress stems can be quite fibrous, especially the thicker ones. If you’re making a short-simmered soup, trim away the tougher/thicker-feeling stems for a more delicate texture.

Skip this step if you’re cooking the soup for an extended period, since the stems will soften and blend into the broth.

4. Parboil the Pork for a Clear Broth

As with most Chinese soups, parboiling the pork ribs for 5–10 minutes before rinsing removes impurities for a clearer and less greasy broth.

I’m all for skipping unnecessary steps, but trust me—skipping this one leads to a murky soup, especially in the Instant Pot. If using a stovetop, you can probably forgo parboiling by skimming off scum as it rises during cooking, but I think the former method is less hassle.

5. Dried Scallops Makes a Difference!

Dried scallops add a rich umami depth to the broth, elevating the overall flavor. If you don’t have dried scallops, here are some substitutes:

  • Dried shrimp: Brings a similar briny seafood note but is slightly more intense. Use the same amount called for in the recipe.
  • Dried shiitake mushrooms (for shellfish allergies): Soak them overnight, then slice and add to the soup. Use the soaking liquid for an added umami boost. The flavor leans more earthy and deep rather than briny but is still incredibly savory. Use 3-4 dried shiitake depending on size.
  • Dried kombu (seaweed): If you’re experimenting, kombu could work for an additional layer of oceanic umami without the shellfish element. Soak the kombu in cold water overnight. Then use the soaking liquid only as the soup base. Start with 10 g per 2 cups of water.

Omitting the above will still give you a good soup, but it will have a lighter-tasting profile.

Other Recipes Using Pork Ribs but with “Warming” Benefits

a bowl of pork rib watercress soup on a white marbled top
Print Recipe
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Watercress and Pork Rib Soup

Prep Time15 minutes
Cook Time47 minutes
Total Time1 hour 2 minutes
Course: Soup
Cuisine: Asian, Chinese
Keyword: instant pot, watercress recipe, watercress soup
Servings: 4

Equipment

  • Instant Pot (IP)

Ingredients

  • 12 oz watercress 2 bunches, about 10 oz after tough stems removed
  • 2 lb pork ribs cut into 2-inch pieces
  • 20 g ginger thinly sliced
  • 12 oz jumbo carrot cut into 1.5-inch pieces
  • 20 g dried jujubes with the pit
  • 15 g dried scallops
  • 42 oz Asian chicken broth
  • 2 cup water
  • salt and/or fish sauce to taste at the end

Instructions

  • Remove tough stems from watercress. Wash and rinse well to remove dirt. Might need 2-3 washes. Set aside.
  • Parboil the pork ribs with the ginger in a large pot of water (enough to cover the ribs). Keep it a rolling boil for 5 minutes to extract the scum. Discard the ginger, drain ribs, and rinse well to remove the scum.
  • Add the parboiled pork ribs, carrot, dried jujubes, dried scallops, chicken broth, and water into the Instant Pot. Pressure cook on high for 10 minutes + 15 minutes natural release. Quick Release remaining pressure.
  • Set the IP to sauté mode on high and bring the soup to a rolling boil. Add the watercress to the pot while boiling (to prevent the watercress from turning bitter). Boil for 15 minutes until the watercress is tender. (If you prefer the watercress to be bright green and keeps its crunch, turn off the heat around 5-8 minutes.)
  • Serve hot with steamed rice for a complete meal!

Super Tender (Long-cook) Version

  • Instead of cooking the watercress at the end, bring the soup to a boil in Step 3 (using sauté mode), add the watercress, and pressure cook it together with everything else on high for 10 minutes + 15 minutes natural release.

Notes

You can cook watercress up to 2 hours to soften completely. The soup will turn a beautiful golden color and has a more peppery flavor. This is matter of preference. Try it both ways and decide which on you like more!

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Hi, I’m Ariel 

I’m a foodie with a simple philosophy: why should amazing food be reserved for the weekends alone? I’m all about making every meal delicious because, let’s face it, we only have so many meals in our lifetime.

My mission? To take the stress out of cooking with easy-to-use meal plans so you can enjoy mouthwatering recipes any day of week. Join me on this tasty journey and let’s savor “more taste, less waste” in every bite!

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Hi, I’m Ariel 

I’m a foodie with a simple philosophy: why should amazing food be reserved for the weekends alone? I’m all about making every meal delicious because, let’s face it, we only have so many meals in our lifetime.

My mission? To take the stress out of cooking with easy-to-use meal plans so you can enjoy mouthwatering recipes any day of week. Join me on this tasty journey and let’s savor “more taste, less waste” in every bite!