In cup, stir marmalade andmustard until mixed; set aside. cut ham slices to fit o half of the bread slices; cut cheese slices to it on top of ham, then top with a dollop of marmalade mixture and another bread slice. Preheat oven to 450. in 15.5 x 10.5 jellyroll pan, melt butter or margarine; remove pan from oven. In pie plate, with fork beat milk and egg until mixed. Dip sandwiches, one at a >> time, into egg mixture to coat all sides. Place sandwiches, in one layer, in jelly roll pan. Bake until sandwiches are golden brown on both sides, about 20 minutes, turning once. Cut each sandwich in half. sERve hot. from good housekeeping.