Ingredients:
1/2 lb dry beans, soaked overnight
1 onion, chopped
2 cloves garlic, minced
1 T chili powder
1 tsp cumin
1 tsp oregano
If you want, you can dry-fry the onions first. then add the beans and everything else, cover with water, and start cooking. Or if you don't want to dry-fry the onions, just combine everything and start cooking. cook for 3 hours. Add water as necessary but not too much (to keep the flavors more concentrated). If you like a sweet flavor, you can add a little sweetener of your choice (e.g., maple syrup, brown sugar). I've also seen mustard included in some recipes.