Position a rack in the lower third of the oven, set a large rimmed baking sheet on the rack and heat the oven to 475°. Season the pork chops all over with salt and pepper.
Heat the oil in a heavy duty ovenproof 12” skillet. Swirl to coat the pan bottom with the shimmering hot oil. Arrange the pork chops in the pan, cover with a ovenproof splatter screen and cook until nice and golden, around 6 minutes. Turn the chop and transfer the skillet and the splatter screen to the oven. Roast for another 8 minutes.
When done transfer to a platter. Pour off all but 1 tablespoon of the fat from the skillet.
Add the shallots and sauté over medium heat, until softened, about 2 minutes. Stir in the flour until combined. Stir in the beer, chicken broth, maple syrup, and thyme. Increase the heat to high and bring to a boil, scraping up any browned bits from the skillet with a wooden spoon.
Simmer vigorously until reduced to about 1 cup, about 3 minutes.
Remove from the heat and whisk in the mustard and the butter. Season with salt and pepper. Serve the sauce over the pork chops
Giangi's Kitchen provides nutritional information, but these figures should be considered estimates, as a registered dietician does not calculate them.