Toast the spices in a small pan until quite fragrant, about 1-2 minutes and set aside.
Heat oil over medium heat and saute onions for a few minutes. Add carrots, bay leaf, ginger and spices and saute for 2 minutes.
Add lentils and enough water to cover ingredients by about 2 cm and cook until lentils are soft, between 30 and 45 minutes.
In a food processor blend lentil mixture and roasted garlic and stir in umeboshi vinegar and coriander. Season to taste with sea salt and cracked pepper.