Trim pork roast, (leaving some fat on meat), cube meat and place in crockpot
Slice and dice the onion, and add to crockpot
Chop and dice garlic, and add to crockpot
Salt and Pepper to taste, stir to combine
Depending on your crock-pot or slow cooker, you may need to stir the ingredients during the cooking process.
There is no need to add fluids as the meat will make its own juices.
Set crockpot to high and cook for 4 1/2 hours.
Add well-drained green chilies
Slice and dice jalapeno peppers and add to the crock-pot
Re-seal the crock-pot and cook for 2 more hours
Remove, garnish with cilantro, if desired, and serve.