New Year Noodle Soup

Ingredients

• 2 tablespoons olive oil
• 1 onion, thinly sliced
• 1 long red chili or green serrano, finely chopped
• 1/2 teaspoon ground turmeric
• 1 teaspoon ground cumin
• 1/4 teaspoon freshly ground black pepper
• 8 1/2 cups / 2 liters good-tasting vegetable stock/broth
• 100g / 3.5 oz yellow split peas or brown lentils
• 1 1/2 cups cooked chickpeas, rinsed if using canned
• 2 cups / 350g cooked borlotti beans
• fine grain sea salt
• 120 g thin egg noodles, fresh or dried
• 3 1/2 oz / 100g fresh spinach leaves, finely shredded
• 1/2 cup finely shredded cilantro leaves
• 2 tablespoons chopped fresh dill
• juice of one lime
• 1 tablespoon olive oil
• 1 tablespoon unsalted butter
• 1 large onion, thinly sliced
• 100 ml sour cream or creme fraiche
• 50g / scant 2 ounces of toasted, chopped walnuts