Cut loaf in 1 inch slices. Arrange in 13x9 greased pan. Beat eggs with milk, sugar, vanilla. Pour mixture over bread and refrigerate 24 hours. Melt butter and drizzle over bread before cooking. Sprinkle with icing sugar or cinnamon. Bake at 350 F for 45-50 minutes. Let stand 5 minutes. Serve with Canadian Maple syrup!