Ingredients:
6 large eggs
1 1/4 cups milk (whole or 2 percent)
1 cup Fireball cinnamon whiskey
2⁄3 cup half-and-half
1/2 cup sugar
1/2 tsp ground cinnamon
Pinch of salt
1 loaf challah or brioche bread, cut into 3/4-inch-thick slices
1 tbsp unsalted butter, plus more for serving
Maple syrup or apple butter, for serving