01 -
Melt butter, brown sugar, and maple syrup until thickened. Pour into greased baking dish.
02 -
Layer bread over caramel. Pour custard mixture (eggs, half-and-half, vanilla, salt) over bread.
03 -
Cover and refrigerate overnight or 6-8 hours.
04 -
Cook at 350°F for 35-45 minutes until golden and bubbly. Rest 5 minutes before serving.