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Chilled Roasted Tomato and Fennel Soup with Basil Oil

A bowl of smooth deep-red chilled tomato soup swirled with bright green basil oil, garnished with feathery fennel fronds, beside a spoon
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When tomatoes hang heavy on the vine and fennel bulbs swell in the summer bed, this velvety chilled soup captures the garden at its peak. Slow-roasting concentrates the tomatoes’ sweetness while fennel lends a whisper of anise. Served cold with a swirl of vivid basil oil, it’s refreshment and comfort in a single bowl.

Prep 20 min 🔥 Cook 45 min 👥 Serves 4 📊 Level Easy

Ingredients for 4 people

  • 2.2 lb (1 kg) ripe tomatoes, halved
  • 1 large fennel bulb (about 10 oz / 300g), sliced, fronds reserved
  • 1 medium onion (about 5 oz / 150g), quartered
  • 3 garlic cloves, unpeeled
  • 3 tbsp (45 ml) olive oil, plus extra for drizzling
  • 1 tsp (5 ml) honey or sugar
  • 1 cup (240 ml) cold vegetable stock or water
  • 1 tbsp (15 ml) red wine vinegar or sherry vinegar
  • 1 cup (25g) fresh basil leaves
  • ⅓ cup (80 ml) mild olive oil (for basil oil)
  • Salt and freshly ground black pepper, to taste

The Recipe

  • Preheat the oven to 400°F (200°C). Arrange the halved tomatoes, sliced fennel, onion quarters, and unpeeled garlic in a large roasting tray.
  • Drizzle with the 3 tbsp olive oil, scatter with the honey, and season with salt and pepper. Toss to coat and spread in a single layer.
  • Roast for 40–45 minutes, until the vegetables are soft and lightly charred at the edges. Let cool for 15 minutes.
  • Squeeze the roasted garlic from its skins into a blender and add all the roasted vegetables along with their pan juices.
  • Pour in the cold stock and vinegar, then blend until completely smooth. For an ultra-silky texture, pass through a fine sieve.
  • Taste and adjust seasoning. Chill in the refrigerator for at least 2 hours, until thoroughly cold.
  • Make the basil oil: blanch the basil leaves in boiling water for 10 seconds, plunge into ice water, then squeeze dry. Blend with the ⅓ cup olive oil and a pinch of salt until vivid green; strain if desired.
  • Serve the soup in chilled bowls, swirl with basil oil, and garnish with reserved fennel fronds and a crack of black pepper.

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