Stuffed Pork Tenderloin with Cream Cheese and Jalapenos

pork tenderloins (they usually come in one package)

cream cheese with chives (see notes)

salt

pepper

garlic powder (or use 2 garlic cloves, peeled and chopped)

jalapeño, sliced into rings and seeds removed (or keep seeds to make it hot)

fresh cilantro, rinsed and stems snipped off