Carnitas experiment

Today I intend to buy two pork roasts, because I want at least 5 lbs. of meat in the crockpot.

I'm also planning to throw in
2 tsp black pepper
2 tsp of garlic powder, or more
a chopped-up onion
between 2 tsp and 2 TB of cayenne pepper, crushed red pepper, or chili powder
1/2 tsp Lawry's seasoning salt
1 TB cumin
1 tsp cilantro or coriander -- I think I have the coriander on hand
2 to 4 cups of water

I'm actually hoping to do this on my lunch break, so by the time I get home later it'll be ready for testing.