Baked Pumpkin French Toast with Brown Sugar Sauce

PUMPKIN FRENCH TOAST
1 Cut the Brioche bread (or Challah loaf) into cubes. Butter an ovenproof 3-quart rectangle baking dish.
2 Whisk together the eggs, heavy cream, sugars, canned pumpkin, pumpkin spice, vanilla extract, and salt in a large bowl. 
3 Place the cubed bread cubes in the baking dish.Pour the egg mixture over it and press down the cubes. Cover with plastic wrap and place in the refrigerator overnight, or let it sit until all the cream is absorbed.
4 Remove from the refrigerator and bring back to room temperature. Preheat the oven to 350℉ degrees.
5 Place in the hot oven and cook for 50 minutes. The top will be golden, and it will evenly puff up.
OPTIONAL
11 Sprinkle granulated sugar over your pumpkin French toast for added sweetness and crunchiness before placing it in the oven.
BROWN SUGAR SAUCE
6 Meanwhile, prepare the brown sugar sauce by melting ½ cup butter in a small saucepan over medium-high heat.
8 Add brown sugar and ½ cup heavy cream; stir to dissolve the sugar. Remove from heat.
9 Stir in Bourbon and vanilla.
10 Serve warm Pumpkin French toast with sauce over it.