1/4 cup packed light brown sugar
2 tablespoons Dijon mustard
4 (6 oz) boneless salmon filets
salt and ground black pepper to taste
Preheat oven broiler and set the oven rack about 6 inches from the heat source. Prepare the rack of a boiler pan with cooking spray.
Season the salmon with salt and pepper and place on broiler pan. Whisk together the brown sugar and mustard in a small bowl. Spoon mixture evenly over the top of each filet.
Cook until fish flakes easily with a fork, 10 to 15 minutes.
If your house has issues like mine (my smoke detector likes to go off when the broiler is on despite having a clean oven), you can easily cook this at 450* checking for doneness after about 12-15 minutes. May need extra time depending on thickness.