Salsa Verde

1 lb. tomatillos
1/2 large onion, chopped
handful cilantro
3 serranos
juice of 2 limes
1/2 tsp. salt

Roughly chop the tomatillos and combine with the remaining ingredients in a food processor. Pulse until smooth and add a bit of water to thin to desired consistency. Serve raw or cook over medium heat, about 5-10 minutes and serve warm.