Set your slow cooker to Low for 8 hours or High for 6 hours. Starting it now helps it heat up as your are adding ingredients. Be careful to not burn yourself!
Mix Salt, Chili Powder, Cumin, Oregano, Garlic Powder, Black Pepper, and Oil together in a small bowl
Chop the onion, peel and mince garlic, deseed and mince jalapeños, wash and slice oranges in half.
Place onion in the bottom of the slow cooker.
Add your pork shoulder on top of the onion
Pour seasoning/oil blend over the top of the pork, and use your hands to ensure the pork is fully coated in the seasoning
Add garlic and jalapeños on top of pork mixture.
Juice oranges over the top of the pork mixture, and toss in the rinds.
Leave slow cooker on Low for 8 hours of High for 6 hours.
Remove meat and eat right away reserving extra cooking juice on the side to pour on top if desired. Discard orange rinds.
Or complete the "old school" method by using a slotted spoon to remove meat and onions to crisp up either in the oven or in a skillet.
Oven method: Place meat fat side up on a baking sheet and Broil for 10 minutes on High (500°) or until the outside of the meat is crispy.
Skillet Method: Add a small amount of oil or fat to a skillet over high heat. Fry up large pieces of meat until crispy on the outside.
Eat as is or shred and put into tacos, on top of nachos, into quesadillas, or on top of a bed of salad greens.
When I serve this we pull out all the toppings and let people pick what they want: sour cream, avocado, salsa, shredded cheese, tomatoes, lettuce, cilantro. Sometimes I even grab a bag of Cole slaw to mix up!