Clean Comfort Watercress Chicken Soup

This Whole30-friendly Watercress and Chicken Soup is a deliciously simple and remarkably healthy adaptation of my mom’s classic recipe. Crafted for modern kitchens and busy weeknights, this flavorful soup can be prepared in mere minutes using readily available grocery store staples, making it an ideal choice for anyone seeking a nourishing, quick, and satisfying meal.

A comforting bowl of Whole30-friendly Watercress and Chicken Soup, garnished with fresh watercress.

Discover the Powerhouse Green: Watercress in Your Kitchen

Forget kale for a moment, because there’s a new queen of the produce aisle that deserves your attention: watercress! This often-overlooked aquatic plant is far more versatile, incredibly nutrient-dense, and boasts a wonderfully peppery, fresh flavor that elevates any dish. Recent studies have even highlighted its exceptional nutritional profile, giving it a perfect nutrient density score of 100%. My mother, a culinary wisdom keeper, has long recognized the incredible health benefits of watercress, incorporating it into traditional Cantonese pork sparerib and watercress soup for as long as I can remember. That comforting, savory soup was one of my most cherished childhood dishes, a true testament to watercress’s enduring appeal.

From Traditional Comfort to Modern Convenience: My Watercress Chicken Soup Journey

A step-by-step collage demonstrating how to prepare Nom Nom Paleo's Watercress & Chicken Soup, highlighting its simplicity.

When I set out to explore new and exciting ways to cook with watercress, my mother’s iconic soup immediately sprang to mind. Her traditional recipe, known as lou fo tong (老火汤), is a slow-cooked masterpiece, brimming with tender pork spare ribs, fresh watercress, dried Chinese dates, shiitake mushrooms, and almonds. While incredibly delicious, it demands a level of patience that, honestly, is not always one of my virtues, especially on a busy weeknight. I was determined to create a version that captured the soul-warming essence of her soup but in a much faster and simpler format, without sacrificing flavor or nutrition.

An open container of vibrant, fresh watercress with its roots still intact, ready for washing.

The result is this Quick Watercress and Chicken Soup – a streamlined modification of my mom’s original. It’s designed for speed and convenience, allowing you to whip up a gourmet-tasting meal without a special trip to an out-of-the-way Asian supermarket. My secret? I’ve swapped the pork spareribs for readily available sliced chicken thighs, which cook much faster and are fantastic for Whole30 and Paleo diets. I also omit ingredients that aren’t typically found in a standard neighborhood grocery store, ensuring this recipe is accessible to everyone. Because the watercress I purchase at the store is often so young and delicate, I stir it in right at the end of cooking. This technique ensures the watercress retains its vibrant green color, its signature peppery bite, and all its delicate nutrients, adding a beautiful, fresh burst to every spoonful.

I can almost picture my mom playfully shaking her head as she reads through my speedy adaptation, but I assure you, this recipe has been thoroughly kid-tested and approved! On many a chilly evening, when I’ve served this steaming bowl of soup to my family, I’ve been met with a resounding collective thumbs-up. After all, is there anything more comforting and satisfying than a hot bowl of homemade soup? So, don’t delay! Gather your ingredients tonight and simmer a big pot of this delightful, healthy soup for your loved ones.

Enhanced Cooking Tips, Suggestions, and Substitutions

Making this Watercress and Chicken Soup even easier and more adaptable is possible with these helpful tips and tricks. Whether you’re looking to speed up the process, change the protein, or explore different vegetables, we’ve got you covered.

Speed It Up: Making This Soup in an Instant Pot

For those who love the convenience of pressure cooking, this Watercress and Chicken Soup is perfectly suited for your Instant Pot. Here’s how to adapt the recipe for a super-fast preparation:

  1. Begin by using the Sauté function of your Instant Pot. Add your chosen fat, shallots, carrots, and shiitake mushrooms, sautéing until the vegetables are tender and aromatic, typically 5-10 minutes.
  2. Once the vegetables are softened, turn off the Sauté function. Pour in the bone broth or chicken broth, then add the marinated chicken.
  3. Secure the lid on the Instant Pot and set it to cook under high pressure for just 2 minutes. The chicken thighs cook quickly, and this short duration ensures the vegetables are tender without being mushy.
  4. Once the cooking cycle is complete, perform a manual release of the pressure. Carefully open the lid.
  5. Stir in the fresh watercress. The residual heat from the soup will gently wilt the delicate greens in moments.
  6. Taste the soup and season with additional salt and/or fish sauce as needed to achieve your desired flavor balance. Serve immediately and enjoy!

You can see a visual guide to making this soup in an Instant Pot by watching this old Facebook Live cooking video here:

Customize Your Protein: Delicious Alternatives

Absolutely! The beauty of this soup lies in its adaptability. While chicken thighs offer a rich flavor and tender texture, you can easily swap them for other proteins based on your preference or what you have on hand. Consider these options:

  • Pork Tenderloin: Thinly sliced pork tenderloin is an excellent substitute, offering a lean yet flavorful option that cooks quickly.
  • Chicken Breast: If you prefer chicken breast, slice it thinly against the grain to ensure tenderness and rapid cooking. Be mindful that breast meat can dry out faster than thighs, so avoid overcooking.
  • Sirloin Steak: For a heartier touch, thinly sliced sirloin steak or flank steak can be a wonderful addition, bringing a robust, savory depth to the broth.
  • Ground Meats: Ground pork, ground chicken, or ground turkey (especially dark meat poultry) also work exceptionally well. Simply brown the ground meat with the vegetables before adding the broth. This creates a wonderfully hearty texture and infuses the broth with even more flavor.

No matter which protein you choose, ensure it is sliced thinly to allow for quick and even cooking, integrating seamlessly into the fast preparation time of this delicious soup.

Exploring Vegetable Variations for Your Watercress Soup

This soup is incredibly forgiving when it comes to vegetable additions and substitutions, allowing you to tailor it to your taste or what’s available seasonally.

  • Baby Spinach: If fresh watercress is hard to find or you prefer a milder green, baby spinach is an excellent alternative. It wilts just as quickly and blends beautifully into the soup, adding its own nutritional benefits.
  • Mushrooms: While fresh shiitake mushrooms offer an earthy umami depth, regular button mushrooms, cremini mushrooms, or even a wild mushroom blend can be used. Just slice them to a similar thickness for even cooking.
  • Other Leafy Greens: Tender greens like bok choy (sliced), or even finely chopped Swiss chard can be added in the final moments of cooking for a similar effect to watercress.
  • Root Vegetables: Feel free to experiment with other quick-cooking root vegetables, such as parsnips or sweet potatoes, sliced into small, uniform pieces to ensure they soften at the same rate as the carrots.

Always remember to add delicate greens like watercress or spinach at the very end, off the heat, to preserve their texture, color, and nutrient content.

The Magic of Fish Sauce: Don’t Skip It!

Fish sauce might seem like an unusual ingredient if you’re not accustomed to Asian cooking, but it is truly a secret weapon in this soup! It provides an incredible depth of umami flavor that elevates the entire dish, creating a complex, savory profile that’s hard to achieve otherwise. Don’t be intimidated by its strong aroma in the bottle; once cooked, it transforms, adding a rich, nuanced taste without making the soup “fishy.”

However, if you absolutely must omit the fish sauce (perhaps due to allergies), the soup will still be delicious. In this case, simply adjust the seasoning to taste with a little more coconut aminos and/or a touch more kosher salt. The goal is to balance the flavors and ensure the broth is deeply savory.

Time to Make Your Wholesome Watercress and Chicken Soup!


Watercress and Chicken Soup Recipe Card

Servings: 4

Ingredients:

  • ½ pound fresh watercress (or two containers of hydroponic/living watercress), thoroughly washed and drained
  • 1 pound boneless, skinless chicken thighs, thinly sliced into strips
  • 2 teaspoons coconut aminos
  • ½ teaspoon toasted sesame oil
  • ½ teaspoon Red Boat fish sauce
  • 1 teaspoon avocado oil, ghee, or your preferred cooking fat
  • 1 large shallot, thinly sliced
  • 2 large carrots, peeled and sliced into ¼-inch coins
  • 4 large shiitake mushrooms, thinly sliced (fresh or dried and rehydrated)
  • Kosher salt, to taste
  • 6 cups bone broth or high-quality chicken broth

Equipment:

  • Cutting board
  • Chef’s knife
  • Salad spinner (optional, for drying watercress)
  • Medium bowl
  • Measuring spoons
  • Measuring cup
  • Large saucepan or Dutch oven
  • Silicone spatula or wooden spoon
  • Serving bowls
  • Ladle

Method:

  1. Prepare the watercress: If you’re using hydroponic or “living” watercress with roots, carefully cut off the root end. Rinse the leaves thoroughly under cold running water to remove any dirt or debris. Gently spin them dry in a salad spinner or simply drain them well in a colander.

    Carefully cutting the roots off a bunch of fresh, vibrant watercress leaves.

    Washing delicate young watercress leaves in cold water within a clear glass bowl, preparing them for the soup.

  2. Marinate the chicken: Slice the boneless, skinless chicken thighs into thin, even strips. Place them in a medium bowl. Add the coconut aminos, toasted sesame oil, and Red Boat fish sauce. Stir everything together thoroughly to ensure the chicken is evenly coated with the marinade. If you’re a prepared planner, you can marinate the chicken in advance for up to 24 hours in the refrigerator for deeper flavor. However, if you’re short on time, marinating it right before cooking works perfectly well.

    A person is expertly slicing boneless, skinless chicken thighs into thin strips, preparing them for the Watercress & Chicken Soup.

    Marinating thinly sliced chicken thighs with coconut aminos, sesame oil, and fish sauce for the Watercress & Chicken Soup.

  3. Sauté the vegetables: Heat the avocado oil (or your preferred fat) in a large saucepan or Dutch oven over medium heat. While the oil heats, finish chopping the shallots, carrots, and shiitake mushrooms as specified in the ingredients list.

    A colorful platter showcasing perfectly sliced carrot coins, shiitake mushrooms, and shallots, ready for the soup.

  4. Cook the aromatics and carrots: Once the pan is hot, add the sliced shallots, carrots, and shiitake mushrooms, along with a pinch of kosher salt. Sauté, stirring occasionally, until the shallots become translucent and the mushrooms are softened, typically about 5-10 minutes. The carrots will start to tenderize during this step.

    Sautéing shallots, carrots, and shiitake mushrooms in a large saucepan, releasing their aromatic flavors.

    An overhead shot of the beautifully sautéed shallots, carrots, and shiitake mushrooms in the saucepan, ready for broth.

  5. Add broth: Pour in the 6 cups of bone broth or chicken broth. Increase the heat to high and bring the liquid to a rolling boil.

    Pouring rich, savory broth into the saucepan, mingling with the aromatic vegetables for Watercress & Chicken Soup.

  6. Cook the chicken and finish vegetables: Once the broth is boiling, carefully add the marinated chicken strips to the pot. Bring the soup back up to a boil, then immediately reduce the heat to low, just enough to maintain a gentle simmer. Continue to cook for an additional 5-10 minutes, or until the carrots have softened to your liking and the chicken is thoroughly cooked through. Remember, thinly sliced boneless, skinless chicken breast will cook faster than thighs. If using breast, you might need to remove the chicken first if your carrots still need more time. Chicken thighs are more forgiving and can remain in the pot until the carrots are perfectly tender.

    Adding a bowl of marinated, thinly sliced chicken thighs to the simmering pot of Watercress & Chicken Soup.

  7. Add watercress and season: Remove the pot from the heat. Stir in the fresh watercress. The heat from the soup will cause the delicate greens to wilt quickly. As soon as the watercress has wilted and brightened, taste the soup and adjust the seasoning with more kosher salt and/or fish sauce as needed. You want a well-balanced, savory flavor.

    Gently adding fresh, tender watercress to the hot Watercress & Chicken Soup after removing it from the heat.

    An overhead shot of the completed Watercress & Chicken Soup, vibrant with green watercress and tender chicken.

  8. Serve and enjoy: Ladle the hot soup into individual serving bowls. Dig in immediately and savor the comforting flavors!

    Expertly ladling steaming Watercress & Chicken Soup into a beautiful white bowl, ready to serve.

Notes:

Instant Pot Pressure Cooker Directions:

  1. Use the Sauté function of the Instant Pot to cook the vegetables (shallots, carrots, shiitake mushrooms) as described in method steps 3 & 4 until softened.
  2. Instead of method steps 5 & 6, add the broth and marinated chicken to the Instant Pot. Secure the lid and program the Instant Pot to cook under high pressure for 2 minutes. Perform a manual release of the pressure when cooking is complete.
  3. Open the lid and stir in the watercress. Season to taste with salt and fish sauce.

Nutrition Information (Approximate per serving):

Calories: 295 kcal | Carbohydrates: 8g | Protein: 33g | Fat: 15g | Fiber: 2g

Nutrition information is automatically calculated, so should only be used as an approximation.

Pro Tip for Leftovers: This soup makes fantastic leftovers! For an extra special twist, serve it for breakfast topped with a perfectly fried crispy egg. The runny yolk adds an incredible richness that complements the savory broth beautifully. It’s a fantastic way to enjoy a hearty and healthy start to your day.

A side view of a delightful bowl of Watercress & Chicken Soup, served on a plate with a white ceramic spoon, highlighting its inviting presentation.

Want more inspiration from past January Whole30 challenges? Explore some of my popular Day 4 posts from previous years for additional recipe ideas:

  • 2018 Whole30 Day 4: Paper-Wrapped Chicken
  • 2017 Whole30 Day 4: Paleo Packed Lunches

(This post was originally published on January 4, 2016, and has been updated for clarity and expanded content.)


A special note to my wonderful Nomsters: This article is part of a series of daily blog posts I’m dedicating to those embarking on a Whole30 journey to kick off the New Year. If you’re new to Whole30 or need guidance on getting started, I highly recommend reading my Whole30 prep post. Afterward, be sure to return to Nom Nom Paleo every single day throughout January for inspiring, delightful, and sustaining recipes designed to support you on your Whole30!


Searching for even more incredible recipe ideas? Venture over to my comprehensive Recipe Index. Additionally, you’ll discover exclusive culinary creations on my iPhone and iPad app, and within my acclaimed cookbooks: Nom Nom Paleo: Food for Humans (Andrews McMeel Publishing 2013), Ready or Not! (Andrews McMeel Publishing 2017), and Nom Nom Paleo: Let’s Go! (Andrews McMeel Publishing 2021).