This recipe is from La Bola Restaurant, Denver, CO. It is published in the Colorado Cache Cookbook from 1981. Don't eat dry burritos! This "gravy" is wonderful to smother burritos, rellenos, or just dip tortillas or chips into. I have been making this recipe since 1981.
Cut pork into 1/2 inch squares and with the pork bones fry over low heat until brown and the meat is slightly dry. If pork is very fat, pour off all but 4 or 5 Tbsp. of the grease.
Using a colander, strain tomatoes into an 8-quart saucepan and coursely chop tomatoes. Combine tomatoes, tomato sauce, garlic, hot water and cooked pork and bones in the same saucepan. Bring to rapid boil and continue boiling for 20 minutes. Add spices, chopped jalapenos and chopped chili strips. Continue boiling another 20 minutes.
Finish by cooking on medium heat until desired thickness, usually about another 20 minutes. Remove bones and green chili is ready to serve.
NOTE: May be kept refrigerated for a week or frozen for 3 months. Use to cover burritos, chili rellenos and most anything. Melt an equal amount of grated sharp Cheddar cheese and green chili for a chili con queso dip.