Overnight Gingerbread French Toast

Ingredients (13)

• + ¼ cup butter add to pantry
• + 1 loaf French bread, cut into 3/4-inch slices add to pantry
• + ½ cup milk, or as needed add to pantry
• ✓ 3 eggs
• ✓ ¼ cup maple syrup
• + ¼ cup molasses add to pantry
• + 1 teaspoon ground cinnamon add to pantry
• + 1 teaspoon ground allspice add to pantry
• + 1 teaspoon ground ginger add to pantry
• + ½ teaspoon ground nutmeg add to pantry
• + ½ teaspoon ground cloves add to pantry
• + 1 pinch salt, or to taste add to pantry
• + 2 tablespoons confectioners' sugar for dusting, or to taste add to pantry