Ingredients
1/2 cup butter
1 cup packed brown sugar
2 tbsps light corn syrup
6 slices French, crusts removed
5 eggs
1 1/2 cups half and half (I used fat free)
1 tsp vanilla
1 tsp Grand Marnier
1/4 tsp salt 

Directions

Melt butter in a small saucepan over medium heat. Mix in the brown sugar and corn syrup and stir until sugar is dissolved. Pour this mixture into a 9×13 baking dish.

Arrange bread in the baking dish on top of the sugar mixture in a single layer. In another bowl, whisk together eggs, half and half, vanilla, Grand Marnier, and salt. Pour over the bread in the pan. Cover and put in the refrigerator for at least 8 hours or overnight.

In the morning, preheat the oven to 350º. I put the dish on the counter while the oven is heating to take off the chill.

Bake, uncovered, 35-40 minutes until puffed and lightly browned. Mine gets very puffy but settles down as it cools.

Makes 6 servings.