Pat dry pork tenderloin with paper towels.

Combine rub ingredients and rub all over tenderloin then place in your Crockpot.

Top with remaining ingredients, cover, and cook on high for 4-6 hours or low for 6-8 hours. When done, the meat will be cooked through and very tender, easily separated with a fork.

Remove the tenderloin from the Crockpot and shred the meat with two forks. Do not discard juices.

Heat a drizzle of olive oil in a medium skillet over medium heat. Add enough carnitas to cover the surface without crowding and ladle a little of the carnitas juice over. Cook until juice has evaporated and the bottom of carnitas is crispy and browned. Flip and cook briefly, but not until too brown.

Remove from skillet and drizzle with a little more juice. Serve.