5 cups (1/2-inch) cubed French bread (about 8 ounces)
1 cup evaporated fat-free milk
3/4 cup 1% low-fat milk
1/3 cup granulated sugar
2 tablespoons bourbon
1 tablespoon vanilla extract
1 teaspoon ground cinnamon
1/4 teaspoon kosher salt
2 large eggs
3/4 cup packed light brown sugar
3 tablespoons bourbon
1 tablespoon unsalted butter
6 tablespoons half-and-half, divided
1 teaspoon vanilla extract
1/8 teaspoon kosher salt
Cooking spray