Fennel White Bean and Kale Soup

Ingredients

• ½ cup olive oil
• 2 small fennel bulbs
• 2 small yellow onions
• 4 tsp fresh rosemary or thyme
• 10 garlic cloves
• ½–1 tsp red pepper flakes
• 10–12 oz kale
• 4 cans cannellini beans
• 4 cups chicken broth
• 2 tbsp lemon juice
• 6 tbsp parmesan

Method

Heat the olive oil in a heavy-bottomed pot over medium-high heat until it shimmers. The oil is your medium for herb-infusion — it needs to be hot enough to open up the volatile compounds in the herbs but not so violent that it burns them. Slice the fennel bulbs in half lengthways, remove the core, then cut into 5mm wedges. Dice the onions to roughly the same size. Add both to the oil along with the rosemary or thyme, stirring frequently. You're looking for the fennel to soften and develop a pale golden colour at the edges — about 5 minutes. The onions should turn translucent; they'll sweeten as their cell walls break down through simmering. Don't rush past this stage. Crush the garlic cloves flat and add them whole with the red pepper flakes. Cook for 30 seconds only — garlic blackens fast and turns bitter. You'll smell a sharp, peppery heat when the chilli flakes hit the oil; that's your signal to move on.

Strip the kale leaves from their stems (discard the stems) and add a generous handful at a time, stirring until each addition collapses into the pot. The leaves will seem to occupy the entire pot at first, but they lose two-thirds of their volume as the water content releases. Drain and rinse the cannellini beans — this removes the starch that would otherwise cloud your broth — then add them along with the stock. Grind black pepper directly into the pot. Bring everything to a hard boil, then reduce to a gentle simmer. As it simmers, use the back of a wooden spoon to crush roughly one-third of the beans against the side of the pot. This thickens the broth-based liquid without requiring cream or flour; the bean starch acts as a natural thickener whilst the crushed beans create a creamy texture. Simmer for 6–8 minutes until the fennel is completely tender and the broth has reduced by roughly a quarter.

Remove from the heat. Squeeze in the lemon juice — the acidity cuts through the richness of the oil and the umami of the beans — and stir through the Parmesan. Taste and adjust the salt; the stock and cheese already carry significant sodium. Serve in warm bowls with thick slices of toasted bread for soaking up the broth.