Heat The Butter In A Saucepan Over Medium-High Heat. Crumble In The Scrapple, And Cook Until Browned, About 5 Minutes. Stir In The Flour, And Cook Until Golden, 1 To 2 Minutes. Slowly Whisk In The Milk, And Bring To A Gentle Simmer. Reduce Heat To Medium-Low, And Cook, Stirring Frequently, Until The Mixture Thickens, About 10 Minutes. Season To Taste With Salt, Black Pepper, And Maple Syrup.