Dice the onion and cut the pork shoulder into cubes. Add the diced onion to the bottom of the slow cooker, then the whole jalapenos.
1 Yellow onion, 2 Jalapenos
Combine the cumin, chili powder, oregano, garlic powder, salt, and pepper in a small bowl, then use it to coat the pork well, making sure all pieces are well coated.
3 lbs Pork shoulder, 2 teaspoons Cumin, 2 teaspoons Chili powder, 3 teaspoons Oregano, 2 teaspoons Garlic powder, 1 teaspoon Pepper, 2 teaspoons Salt
Place the pork in the slow cooker on top of the onions and peppers. Then squeeze the juice of a large orange over the pork, and add in the olive oil.
½ cup Orange juice, 2 Tablespoons Olive oil
Turn the crockpot on low, and cook for 8 hours. Don't turn it on high- the pork will get tough! Once the 8 hours are up, remove the pork from the crock pot and shred with with two forks.
Preheat the oven to 425°F, and spread the shredded pork over a baking sheet. Bake for 8-10 minutes, or until the tops start to get brown and crispy.
Pour the juices from the slow cooker through a strainer, and discard any solids. Pour the juices over the carnitas while serving, and enjoy!