Use clean paper towels to pat the pork loin dry. Season the loin with salt and pepper.
Add the olive oil to an oven-safe skillet over medium-high heat. Once the pan is hot, set the pork loin in the pan and sear it on all sides until browned. This should take about 2 minutes per side. Once seared, turn off the heat and transfer the skillet to the preheated oven. Roast the pork for 30 minutes.
In the meantime, whisk together the remaining ingredients and set aside.
At the 30-minute mark, remove the pork from the oven and spoon the sauce mixture over top. Return the pork to the oven for 30 more minutes, basting once.
Remove from oven. Check to see that the internal temperature of the pork is at least 145 degrees F. Allow pork to rest, loosely covered with foil, for 10 minutes before slicing and serving.
Notes
The sauce is ready to enjoy with the pork loin right out of the oven but can be a little on the thin side for some. You can thicken the sauce by boiling it for 5-8 minutes while the pork rests. For an even thicker sauce, bring the sauce to a boil and whisk one teaspoon of cornstarch with two teaspoons of water. Whisk the cornstarch mixture into the boiling sauce and cook for one minute, whisking continuously. Turn off the heat and spoon the sauce over the sliced pork when ready to serve.