Preheat your oven to 375°F and let the pork roast sit at room temperature for 30 minutes before cooking.
Mix together salt, pepper, garlic powder, and thyme in a small bowl. Rub this seasoning mixture all over the pork roast.
Heat olive oil in a large oven-safe skillet or roasting pan over medium-high heat. Sear the pork roast on all sides until golden brown, about 2-3 minutes per side.
While the pork is searing, whisk together the maple syrup, Dijon mustard, apple cider vinegar, minced garlic, cinnamon, and cayenne pepper in a bowl.
Brush about half of the maple glaze over the seared pork roast, making sure to coat all sides.
Transfer the skillet to the preheated oven and roast for 60-75 minutes, or until the internal temperature reaches 145°F. Brush with more glaze every 20 minutes.
Remove from the oven and brush with any remaining glaze. Tent the roast loosely with foil and let it rest for 10-15 minutes before slicing.
Slice and serve with the pan drippings drizzled over the top. This pairs beautifully with roasted vegetables or mashed potatoes!