1.Preheat The Oven'S Broiler And Set The Oven Rack At About 6 Inches From The Heat Source; Prepare The Rack Of A Broiler Pan With Cooking Spray. 2.Season The Salmon With Salt And Pepper And Arrange Onto The Prepared Broiler Pan. Whisk Together The Brown Sugar And Dijon Mustard In A Small Bowl; Spoon Mixture Evenly Onto Top Of Salmon Fillets. 3.Cook Under The Preheated Broiler Until The Fish Flakes Easily With A Fork, 10 To 15 Minutes.