A wholesome, deeply comforting soup crafted from slow-simmered stock, aromatic garden vegetables, and fresh herbs, served with crusty bread.
Cook the onion in the olive oil until soft, then add the garlic and cumin.
Add the lentils and stock and simmer for 25 minutes until tender.
Stir in the spinach and sumac and cook for 5 minutes until wilted.
Season with the lemon juice and salt and serve hot.