Tomatillo Sauce

Directions

1. 1
   Heat a cast iron skillet over high heat.
2. 2
   Grill tomatillos,jalapnos, onion and garlic in skillet, occasionally turning to toast all side, for about 5 minutes.
3. 3
   ingredients will blacken in places (this is a good thing).
4. 4
   Remove from skillet and put into a blender, add cilantro and puree until smooth.
5. 5
   Heat 1 vegetable oil in a deep saucepan over medium heat.
6. 6
   Pouyr puree into pan and cook, stirring constantly, until it darkens in color, about 5 minutes.
7. 7
   Add chicken stock, season with salt and pepper, and lower heat to medium low.
8. 8
   Cook, stirring occasionally, until sauce thickens, about 30 minutes.