Cut beef and pork into bite-sized cubes, trimming fat as you go. Brown meat, chopped onion and chopped garlic in bacon fat in a thick-bottomed heatproof casserole. Cover meat with red wine; bring gently to a boil. Cover casserole, lower heat, and simmer gently for about 1 hour.
Blend chili powder with flour in a little of the hot pan juices and add to the casserole at the same time as b