# Ingredient List:
→ Bread and Custard
01 - 1 large loaf brioche or challah (about 16 ounces), cut into 1-inch cubes
02 - 6 large eggs
03 - 2 cups whole milk
04 - 1 cup heavy cream
05 - 3/4 cup granulated sugar
06 - 2 tablespoons light brown sugar
07 - 2 teaspoons pure vanilla extract
08 - 2 teaspoons ground cinnamon
09 - 1/4 teaspoon ground nutmeg
10 - 1/4 teaspoon salt
→ Filling
11 - 4 ounces cream cheese, softened
12 - 1/3 cup powdered sugar
13 - 1 teaspoon lemon zest, optional
→ Topping
14 - 2 tablespoons unsalted butter, melted
15 - 2 tablespoons granulated sugar
16 - 1 teaspoon ground cinnamon
→ Icing and Decoration
17 - 1 cup powdered sugar
18 - 2 to 3 tablespoons milk
19 - 1/2 teaspoon vanilla extract
20 - Purple, green, and gold sanding sugar or sprinkles for garnish
# How-To Steps:
01 - Grease a 9 by 13-inch baking dish with butter or cooking spray.
02 - Beat softened cream cheese, powdered sugar, and lemon zest together in a mixing bowl until smooth and well combined.
03 - Arrange half the brioche cubes in the prepared baking dish. Dollop cream cheese mixture evenly over bread. Top with remaining bread cubes.
04 - In a large bowl, whisk together eggs, whole milk, heavy cream, granulated sugar, brown sugar, vanilla extract, cinnamon, nutmeg, and salt until well combined.
05 - Pour custard evenly over bread mixture, pressing down gently to ensure thorough soaking. Cover tightly with aluminum foil and refrigerate for at least 8 hours or overnight.
06 - Remove baking dish from refrigerator and preheat oven to 350 degrees Fahrenheit. Allow the casserole to stand at room temperature while oven heats for approximately 15 minutes.
07 - Mix melted butter, sugar, and cinnamon in a small bowl. Drizzle this mixture evenly over the casserole.
08 - Bake uncovered for 40 to 45 minutes, until the top is puffed and golden brown.
09 - Remove from oven and let cool for 10 minutes.
10 - Whisk powdered sugar, milk, and vanilla extract together in a small bowl until smooth and pourable.
11 - Drizzle icing over the warm casserole. Immediately sprinkle with purple, green, and gold sanding sugar in festive stripes. Serve warm.