Cabbage Sabzi

1 medium head cabbage, shredded
2 tbs vegetable oil
2 tsp cumin seed
1 tsp mustard seed
1 onion, sliced into half-rings
2 tbs ginger, minced
4 cloves garlic
3 Serrano peppers, slit down the sides
1/2 tsp turmeric
1 1/2 tsp salt
1 cup water

Heat the oil over medium-high heat in a large saute pan. Add the mustard and cumin seeds and cook until they pop, just a few seconds. Reduce the heat to medium and saute the onion until it begins to brown. Add the ginger, garlic and peppers. Cook until aromatic, then add the cabbage, turmeric, salt and water. Bring to a boil and simmer until the cabbage is cooked and the water has mostly boiled off. Remove the peppers if desired.