Bring the chicken broth, vinegar, maple syrup, chipotles in adobo, chili powder, tomato sauce, garlic, a generous pinch of salt and a few grinds of pepper to a simmer in a medium saucepan over medium heat. Reduce heat to medium-low and gently simmer until thick, stirring occasionally, about 25 minutes. Reserve 1/2 cup of the sauce for serving.
While the sauce simmers, adjust an oven rack about 4-inches below the heat source and preheat the broiler to high.
Put a broiler pan or foil-lined baking sheet under the broiler to preheat for 5 minutes. Sprinkle the pork chops with salt and pepper, put on the preheated pan and brush with the some of the sauce. Broil the chops, brushing with more sauce, 2 to 3 more times, until cooked through and slightly charred, about 8 minutes (do not flip). Serve the pork chops with potato salad or mashed potatoes, wilted spinach and the extra sauce on the side.
Copyright 2016 Television Food Network, G.P. All rights reserved.