Spinach Soup with Horseradish Granité

Horseradish, originally consumed for medicinal purposes, became the condiment of choice for English roast beef in the 17th century. Chef Tristan Welch creates an ingenious granité by freezing horseradish with milk, scraping it into icy flakes, and scooping it onto toasts to garnish a creamy spinach soup.

Spinach soup with horseradish granité
Photo: © John Kernick
Active Time:
40 mins
Total Time:
1 hrs 10 mins


Horseradish Granité

  • 1/2 cup milk

  • 2 tablespoons prepared horseradish, drained

  • Kosher salt

Spinach Soup

  • 1 quart chicken stock

  • 2 cups milk

  • 2 large thyme sprigs

  • 2 bay leaves

  • 3 tablespoons vegetable oil

  • 1 pound red potatoes, peeled and thinly sliced

  • 2 large leeks (white and tender green parts only), halved lengthwise and thinly sliced

  • Kosher salt

  • 5 ounces (10 cups) spinach leaves

  • Freshly ground black pepper

  • 8 slices baguette, toasted


Make the granité

  1. In a blender, puree the milk with the horseradish. Transfer to a small glass baking dish and season with salt. Freeze for about 1 hour, until firm. Using a fork, scrape the granité until snow-like.

Make the soup

  1. In a saucepan, combine the stock with the milk, thyme, and bay leaves. Cover and bring to a simmer over low heat.

  2. In a large saucepan, heat the vegetable oil. Add the potatoes and leeks and season lightly with salt. Cover and cook over moderately low heat until the vegetables are softened, about 7 minutes. Pour the stock mixture over the potatoes and leeks, cover and simmer over moderately low heat until the potatoes are tender, about 15 minutes. Discard the thyme and bay leaves.

  3. Bring the soup to a boil. Add the spinach and wilt over moderately high heat, 1 minute. Working in batches, puree the soup in a blender. Return the soup to the saucepan and season with salt and pepper.

  4. Ladle the soup into bowls. Scoop a rounded tablespoon of the granité onto each toast. Float the toasts in the soup and serve right away.

Make ahead

The granité can be frozen for up to 3 days. Let stand at room temperature for 10 minutes before scraping.

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