Place oil, bouillon, onion and spices in large soup pot.
Saute until onions are soft and clear, about 5 minutes.
Add garlic.
Separately, place 1 quart water in blender.
Add in masa harina and briefly blend together.
Add masa harina mixture to the soup pot along with remaining quart of water.
Bring to a boil, carefully stirring, as the masa harina likes to stick to the bottom.
Boil for several minutes.
Add in the tomatoes.
Add cheese and stir 'til it melts.
Add in shredded chicken.
Heat thoroughly and serve.