Watercress Soup
Fresh watercress soup recipe ready in 25 minutes. Nutritious vegan soup packed with vitamins and minerals. Easy preparation with simple ingredients.
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Ingredients
7 items
This vibrant watercress soup combines the peppery bite of fresh watercress with creamy potatoes and aromatic vegetables to create a nutritious and satisfying meal. Rich in vitamins A, C, K, and E, this vegan soup delivers exceptional nutritional value with minimal calories, making it perfect for health-conscious diners.
Ready in just 25 minutes, this simple yet elegant soup showcases watercress at its finest. The natural earthiness of the greens pairs beautifully with the subtle sweetness of sautéed onions and the creamy texture of pureed potatoes, creating a well-balanced dish that works as both a light lunch and an elegant starter.
Instructions
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Prepare the vegetables
Peel and roughly chop 2 medium potatoes into 1-inch pieces. Dice 2 medium onions and mince 2 cloves of garlic.
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Sauté the base
Heat 8 tablespoons of olive oil in a large soup pot over medium heat (160°C/325°F). Add the chopped potatoes, onions, and garlic, stirring to coat evenly with oil.
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Cook the vegetables for 5-7 minutes, stirring occasionally, until the onions are soft and translucent and the potato edges begin to soften.
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Add liquid and simmer
Pour in 3 cups of vegetable broth and bring to a rolling boil over high heat.
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Reduce heat to medium-low and simmer for 8-10 minutes until the potatoes are completely tender when pierced with a fork.
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Add watercress
Remove thick stems from 3 bunches of watercress and add the leaves and tender stems to the pot. Stir until the watercress is completely wilted, about 2 minutes.
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Blend the soup
Using an immersion blender, puree the soup directly in the pot until completely smooth and creamy, about 2-3 minutes of blending.
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Season and serve
Season with salt and pepper to taste. Serve immediately while hot, garnished with a drizzle of olive oil or croutons if desired.
Tips
Choose watercress with bright, crisp leaves and avoid any bunches with yellowing or wilted stems for the best flavor and nutritional value.
Wash watercress thoroughly in cold water, as it can harbor grit and sand from growing conditions. Soak in a bowl of water and lift out rather than draining to leave debris behind.
Don't overcook the watercress - add it at the end of cooking and blend immediately to preserve its vibrant color and fresh, peppery taste.
For a silkier texture, strain the soup through a fine-mesh sieve after blending to remove any fibrous bits from the watercress stems.
Taste and adjust seasoning after blending, as watercress has a naturally peppery flavor that may reduce the need for additional black pepper.
Serve immediately after preparation when possible, as the bright green color will gradually fade over time, though the flavor remains excellent.
If the soup is too thick after blending, gradually add warm vegetable broth rather than water to maintain the rich flavor profile.
The Nutritional Powerhouse of Watercress
Watercress stands as one of nature's most nutrient-dense leafy greens, earning its reputation as a superfood through centuries of cultivation and consumption. This peppery green belongs to the cruciferous family alongside broccoli, kale, and Brussels sprouts, sharing their impressive nutritional profile and health benefits.
With only 7 calories per two cups, watercress provides an exceptional concentration of vitamins and minerals. It contains more vitamin C than oranges, more calcium than milk, and more iron than spinach. The high levels of nitrates found in watercress have been linked to improved athletic performance and cardiovascular health, making this soup an excellent choice for active individuals.
A Brief History of Watercress
Watercress has been valued for its medicinal and nutritional properties since ancient times. Hippocrates, the father of modern medicine, established his first hospital on the island of Kos near a natural watercress stream, believing in its healing powers. Roman soldiers relied on watercress as a primary food source during long campaigns, appreciating its availability and nutritional density.
During the Victorian era, watercress became known as "poor man's bread" in London, as working-class families would forage for this free, nutritious green in natural streams and rivers. Street vendors would sell watercress bunches early in the morning, often calling out "Watercresses!" to attract customers seeking an affordable, healthy breakfast.
Variations and Adaptations
This basic watercress soup recipe serves as an excellent foundation for numerous variations. For added richness, consider incorporating coconut milk or cashew cream in the final stages. A splash of white wine during the sautéing process adds depth and complexity to the flavor profile.
Seasonal vegetables can easily be incorporated to create unique variations. Try adding leeks in spring, fresh peas in summer, or roasted butternut squash in autumn. For protein enhancement, white beans or silken tofu can be blended into the soup without compromising its vegan status.
Those preferring a chunkier texture can reserve some watercress leaves and diced potatoes before blending, stirring them back in for added texture and visual appeal.
International Inspirations
French cuisine often features watercress soup enriched with crème fraîche and finished with fresh herbs. Asian variations might include ginger, miso paste, or coconut milk for added umami and complexity. Portuguese versions often incorporate white beans and olive oil for a heartier meal.
Serving Suggestions and Pairings
Watercress soup pairs beautifully with crusty artisanal bread, homemade croutons, or a simple side salad. For an elegant presentation, garnish with a swirl of olive oil, toasted seeds, or fresh herbs. The soup's vibrant green color makes it an impressive starter for dinner parties or special occasions.
Consider serving alongside grilled vegetables, quinoa salad, or roasted nuts for a complete meal. The soup's light nature makes it an excellent precursor to heartier main courses, while its nutritional density ensures satisfaction when served as a light lunch.
Storage and Meal Prep
This watercress soup stores exceptionally well, making it perfect for meal preparation. Refrigerate covered for up to four days, though the vibrant green color may slightly fade over time. The soup can be frozen for up to three months, though the texture may become slightly grainy upon thawing.
When reheating, do so gently over low heat to preserve the delicate flavors and prevent separation. A splash of vegetable broth or water may be needed to restore the desired consistency.
Frequently Asked Questions
Can I substitute other greens for watercress?
While watercress provides a unique peppery flavor, spinach, arugula, or kale can be substituted. Adjust quantities as these greens have different intensities and cooking requirements.
How do I select fresh watercress?
Choose watercress with bright green leaves and firm stems. Avoid yellowing or wilted bunches, and ensure the leaves smell fresh and peppery rather than fishy or sour.
Is this soup suitable for children?
Yes, though the peppery bite of watercress may be intense for young palates. Consider mixing with milder greens or reducing the watercress quantity for children.
