Pork Tostadas

I got this idea off another blog, but changed the recipe up a bit.  Yum!

2 lbs pork - country style ribs or other cut (approx size)
1 1/2 onion (1 quartered, 1/2 chopped)
3 cloves garlic, minced
6 c water
salt
1 T oil
1 can tomato sauce
2 t chili powder
1 t cumin

Trim fat from pork.  Cut into 1 inch squares.  Put pork, water, 2 garlic cloves, dash of salt, and 1 onion quartered into a large pot.  Simmer on medium for 1-1 1/2 hours, covered.  Remove onion.  Keep 1 cup of water.  Drain the rest.  Shred pork with a fork, potato masher or spatula.

In a pan, heat oil.  Add pork and chopped onion.  Cook until brown and beginning to crisp - about 7 mins.  Add 1 clove garlic.  Cook 30 seconds.  Add reserved water, tomato sauce, chili powder and cumin.  Mix well and cook until dry.  Add salt to taste.

Serve on crisp tortillas with tomato, lettuce, cheese and sour cream.