1 Melt the butter, brown sugar, and corn syrup together (either in a pot or directly in the pan you''re going to use).2 Place the slices of bread on top of the butter-sugar mixture in the baking pan.3 Mix together the eggs, milk, and vanilla, before pouring it over the bread. 4 Refrigerate overnight.5 Preheat the oven to 350 degrees farenheight.6 Bake uncovered for 35-40 minutes.