In a small pan melt butter with brown sugar and corn syrup. Stir until smooth
Pour mixture into a 9 x 13 inch baking dish
Cut bread into 1" thick slices. Arrange bread slices in pan, on top of sugar mixture.Squeeze them to fit together
In a bowl mix together eggs, half and half, vanilla, OJ and salt. Pour evenly over bread
Cover dish with plastic wrap and refrigerate over night
Heat oven to 350 degrees and bring bread to room temperature before baking
Bake bread mixture uncovered until edges of pale gold. Approx 30-40 minutes
Notes
I used challah bread, but you can use brioche bread or a crusty french bread. French toast is the perfect thing to make when you've got some day old or slightly stale bread
If you don't have half and half, you can use half milk and half cream.
Make sure to bring the French toast to room temperature before baking. If baking chilled, allow additional baking time.