2 tbsp (30 ml) olive oil, plus more for finishing 1 large fennel bulb, cored and thinly sliced (fronds reserved) 1 large leek, white and light green parts only, thinly sliced and rinsed 2 garlic cloves, thinly sliced 1 / 4 tsp red pepper flakes (optional) 1 / 2 cup (120 ml) dry white wine (optional) 4 cups (960 ml) low-sodium chicken or vegetable stock 1 bay leaf 1 small Yukon Gold potato, peeled and diced 1 (15 oz / 425 g) can cannellini beans, drained and rinsed 1 strip lemon zest (about 2 inches) 1 tbsp fresh lemon juice, plus more to taste Kosher salt and freshly ground black pepper, to taste 1 tbsp chopped fennel fronds (optional) 1 tbsp finely chopped fresh rosemary 2 tbsp chopped fresh mint 2 tbsp chopped fresh parsley Zest of 1 lemon 2 tsp extra-virgin olive oil Pinch of flaky salt
Make the rosemary-mint gremolata: In a small bowl, combine rosemary, mint, parsley, lemon zest, olive oil, and a pinch of flaky salt. Set aside. Sauté aromatics: Heat olive oil in a soup pot over medium heat. Add fennel and leek with a pinch of salt and cook, stirring, until softened and lightly golden, 8–10 minutes. Stir in garlic and red pepper flakes; cook 30 seconds. Deglaze: Add white wine (if using) and simmer until nearly evaporated, about 2 minutes. Simmer: Add stock, bay leaf, lemon zest strip, and diced potato. Bring to a gentle simmer and cook until the potato and fennel are tender, 12–15 minutes. Add beans: Stir in cannellini beans and simmer 5 minutes to warm through. Remove and discard bay leaf and lemon zest strip. Thicken: Transfer about 2 cups of the soup to a blender, blend until creamy, and return to the pot (or pulse an immersion blender a few times) to create body while keeping texture. Finish: Stir in lemon juice and fennel fronds (if using). Season with salt and black pepper to taste; add another squeeze of lemon if desired. Serve: Ladle into warm bowls. Spoon a little rosemary-mint gremolata over each serving and finish with a light drizzle of olive oil and freshly ground black pepper.
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