Maldon sea salt or other flaky sea saltfor garnish
Instructions
Cook The Onions And Leeks: Heat the olive oil in a large, heavy bottomed saucepan over medium heat. Once heated, add the onions and leeks; cook for 5 to 6 minutes or, until the onions are soft and transparent. Add the garlic and mushrooms, season with salt and pepper then cook for an additional 2 to 3 minutes.
Add The Remaining Vegetables: Add the carrots and sauté for 1 to 2 minutes, just until lightly fragrant, then cover with 6 cups of water. Add the potatoes, cauliflower, and bay leaf and bring to a boil.
Simmer The Soup: Reduce heat to low, cover, and cook at a simmer for upwards of 2 hours. After at least one hour (or two if you cook it that long), stir in the oats and kale and continue cooking for 10 to 15 minutes.Season with a few heavy pinches of sea salt and serve with freshly ground black pepper and a drizzle of olive oil.