01 -
In a large mixing bowl, whisk together eggs, eggnog, whole milk, and rum flavoring until well blended.
02 -
Dip cubed Texas toast into the custard mixture, ensuring all pieces are coated, and arrange evenly in a greased 9-inch baking dish. Pour any remaining custard over the bread.
03 -
Evenly sprinkle cinnamon and nutmeg over the assembled bread cubes.
04 -
Cover the baking dish with aluminum foil and refrigerate for at least 4 hours or overnight for best results.
05 -
In a small bowl, mix melted unsalted butter with packed light brown sugar to form a smooth topping.
06 -
Drizzle the butter and brown sugar mixture evenly over the bread. Sprinkle with chopped pecans if desired. Bake uncovered in a preheated oven at 350°F (175°C) for approximately 40 minutes until golden and set.
07 -
Allow the casserole to cool slightly before serving. Enjoy warm for optimal flavor and texture.