Combine the beer, brown sugar and ketchup in a medium bowl. Set aside.
Coat pork chops with salt and pepper. Coat a large skillet with cooking spray. Cook the pork chops for 3 minutes on each side over medium heat. Pour the beer mixture over the pork chops and bring to a boil. Reduce heat to medium-low and simmer, uncovered, for 10-15 minutes, or until a meat thermometer inserted into the center reads 160 degress F.
Remove pork chops from skillet and cover to keep warm. Let the sauce simmer until it has reduced to 3/4 cup, about 5 minutes. Pour sauce over the pork and serve immediately.