Preheat oven to 350 degrees F.
Cut up bread while milk and butter are heating in a pot. Combine liquids, eggs, sugar, and spice. Add bread last by submerging it using your hands so that it gets thoroughly soaked. Transfer into a buttered 9 by 13-inch pan, pouring gently so that bread doesn't break up too much. Bake until an inserted skewer or knife comes out clean, about 40 minutes.
Recipe courtesy of Anna Kelly, Chef Randall's Ordinary