1 T oil
2 small or 1 large onion, chopped (about 1 cup)
1 lb dry brown lentils
1 tsp marjoram
6 cups water
1 leek, cleaned and chopped
2 medium potatoes, peeled and cubed (1 1/2 cups)
2 small carrots, peeled and chopped (3/4 cup)
3/4 lb sausage, sliced (good choices are hot dogs, bockwurst and knackwurst, or dried, salami-like Jägerwurst)
2 T granulated instant broth, chicken, beef or vegetable flavor
1 T balsamic vinegar
1 T white vinegar
Coarsly ground pepper