Preheat the grill or use a skillet. Remove fat and silver skin from the pork.

Mix onion powder, garlic powder, chipotle powder, salt, and brown sugar in a large bag. Add the cleaned pork to the bag and let it marinate for 15 minutes. Grill or pan sear the meat, then place it on a sprayed baking sheet and bake at 350ºF for about 20 minutes or until it reaches medium doneness.

Let the pork rest for 10 minutes before slicing. Drizzle the meat's juices over the pork before serving.