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Watercress Salad With Warm Mustard Dressing

This vibrant watercress salad with warm mustard dressing is a sophisticated vegetarian starter or light lunch that balances bold flavours with satisfying textures. Peppery watercress leaves provide a fresh, crisp base, while the emulsified dressing offers a velvety richness that gently softens the greens. The addition of toasted pumpkin seeds adds a smoky crunch, elevating this simple dish into something truly special for a dinner party or a healthy midweek meal.

Quick to prepare and naturally nutritious, this salad is an excellent way to enjoy seasonal greens. The warm dressing is made using a gentle bain-marie technique, which ensures a thick, creamy consistency without the need for heavy cream. Serve it alongside crusty sourdough bread or as a zesty accompaniment to grilled halloumi for a complete and wholesome vegetarian feast.

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Ingredients for Watercress Salad With Warm Mustard Dressing

  • 1 large egg

  • 2 tablespoons fresh lemon juice

  • 1 teaspoon Dijon mustard

  • 1/2 teaspoons sugar

  • 1/4 teaspoons freshly ground black pepper

  • 1/8 teaspoons ground coriander

  • 2 teaspoons olive oil, divided

  • 1/2 teaspoons kosher salt, divided

  • 2 tablespoons raw pumpkin seeds (pepitas)

  • Pinch of smoked paprika

  • 1 bunch watercress, trimmed, washed (about 475ml )

Whisk egg, lemon juice, mustard, and sugar in a medium heatproof bowl set over a pot of barely simmering water; cook until mixture is foamy, thickened, and hot to the touch, about 6 minutes. Remove from heat and whisk in pepper, coriander, 1 1/2 teaspoons oil, and 1/4 teaspoons salt.

Meanwhile, heat remaining 1/2 teaspoons oil in a small skillet over medium. Add pumpkin seeds, paprika, and remaining 1/4 teaspoons salt and cook, stirring constantly, until seeds are golden and puffed, about 2 minutes. Transfer to a paper towel-lined plate and let cool.

Toss watercress with warm dressing in a large bowl. Top with pumpkin seeds before serving.

Disclaimer

While every effort has been made to ensure the information is accurate and up to date, individual needs may vary and dietary requirements can differ based on personal health conditions. Always check food labels and allergen information before preparing or consuming any recipe. If you have specific health concerns, allergies, intolerances, or are following a medically prescribed diet, seek advice from your GP, pharmacist, or a registered dietitian before making significant changes to your diet or lifestyle.

Article history

The information on this page is peer reviewed by qualified clinicians.

  • 28 Jan 2026 | Originally published

    Authored by:

    UK recipe editors

    Peer reviewed by

    UK recipe editors
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