This casserole takes the spirit of a New Orleans king cake and tucks it into an easy, weekend-friendly bake. Instead of braiding dough, you’ll scatter cinnamon roll pieces into a glass baking dish and pour one sweet, custard-like blend over the top—eggs, whole milk, heavy cream, vanilla, cinnamon, and brown sugar. The result lands somewhere between a cinnamon roll, bread pudding, and French toast bake: deeply comforting, wildly satisfying, and simple enough for a lazy Sunday brunch or a festive Mardi Gras breakfast.
Serve this warm, straight from the oven, with the icing drizzled generously over the top so it melts into the crevices. A bowl of fresh berries or citrus segments helps balance the richness, and a pot of hot coffee or a strong black tea is a natural pairing. For a more indulgent brunch spread, you can add scrambled eggs and crisp bacon or sausage on the side so this sweet casserole can play the role of dessert-like centerpiece.
Sweet Blend King Cake Cinnamon Roll Casserole
Servings: 8

Ingredients
2 (12–13 oz) cans refrigerated cinnamon roll dough, with icing packets
3 large eggs
1 cup whole milk
1/2 cup heavy cream
1/3 cup packed light or dark brown sugar
2 teaspoons pure vanilla extract
1 1/2 teaspoons ground cinnamon
1/4 teaspoon fine sea salt
2 tablespoons unsalted butter, softened, for greasing the dish
Optional: 2–3 tablespoons colorful sanding sugar or sprinkles (purple, green, and gold for a king cake nod)
Directions
Preheat your oven to 350°F (175°C). Generously butter a 9×13-inch glass casserole dish, making sure to coat the bottom and sides so the cinnamon rolls don’t stick.
Open the cans of refrigerated cinnamon rolls and set the icing packets aside for later. Cut each cinnamon roll into 4–6 bite-sized pieces and scatter them evenly in the prepared glass baking dish.
In a medium mixing bowl, whisk the eggs until the yolks and whites are fully combined. Add the whole milk, heavy cream, brown sugar, vanilla extract, ground cinnamon, and salt. Whisk until the brown sugar is dissolved and the mixture looks smooth and evenly speckled with cinnamon. This is your one sweet blend.
Slowly pour this sweet blend over the cinnamon roll pieces in the glass casserole dish, making sure to cover all the pieces so they soak up the custard. Gently press down any pieces that sit too high so everything is lightly moistened.
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