Ingredients
Method
Prepare the Brioche & Custard
- Grease a 9x13-inch ceramic baking dish with butter. Cut the brioche loaf into 1-inch cubes and spread them evenly into the prepared dish.
- In a large mixing bowl or pitcher, whisk together eggs, whole milk, heavy cream, granulated sugar, vanilla extract, cinnamon, and fine sea salt until smooth and uniform.
- Slowly and evenly pour the custard all over the cubed brioche, pressing down gently with your hands or a spatula so every piece absorbs the rich custard.
Add Cinnamon Swirl & Bake
- In a small bowl, whisk together melted butter, dark brown sugar, cinnamon, and flour until a smooth spiced paste forms. Drizzle the cinnamon swirl mixture generously across the top of the casserole, using a butter knife to gently marble it through the bread.
- Bake immediately at 350°F (175°C) for 35 to 40 minutes (or cover and chill overnight, adding 5 extra bake minutes), until puffed, golden brown, and set in the center.
Glaze & Serve Warm
- While baking, whisk softened cream cheese, powdered sugar, warm milk, and vanilla until smooth and glossy. Drizzle warmly over the freshly baked casserole right before serving.