Sweet Blend King Cake Cinnamon Roll Casserole

Sweet Blend King Cake Cinnamon Roll Casserole

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 strong black tea makes a perfect pairing.

For a more indulgent brunch spread, add scrambled eggs and crisp bacon or sausage on the side so this sweet casserole can act as the centerpiece of the table.

Servings

8 servings

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

1. Preheat your oven to 350°F (175°C). Generously butter a 9×13-inch glass casserole dish, coating the bottom and sides thoroughly to prevent sticking.

2. 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 into the prepared baking dish.
3. In a medium mixing bowl, whisk the eggs until fully combined. Add the whole milk, heavy cream, brown sugar, vanilla extract, cinnamon, and salt. Continue whisking until the brown sugar dissolves and the mixture looks smooth with cinnamon speckles throughout.

4. Slowly pour the sweet custard blend over the cinnamon roll pieces, making sure all pieces are lightly coated. Gently press down any pieces sticking up too high so they absorb the mixture evenly.
5. Let the casserole rest on the counter for 10–15 minutes so the cinnamon roll pieces can soak up the custard mixture.
6. Place the dish on the center rack of the oven and bake for 30–40 minutes, or until the casserole is puffed, golden brown, and set in the center. A knife inserted into the middle should come out mostly clean.

7. Remove the casserole from the oven and let it cool for about 10 minutes. Knead the icing packets gently with your hands to soften them, then snip the corners and drizzle the icing generously over the warm casserole.
8. If desired, sprinkle purple, green, and gold sanding sugar or sprinkles over the top for a festive king cake-inspired finish.
9. Serve warm, scooping portions so everyone gets both the custardy center and golden edges.

Variations & Tips

For a stronger king cake flavor, add small dollops of cream cheese between the cinnamon roll pieces before pouring over the custard. The cream cheese melts into rich, tangy pockets throughout the casserole.

You can also stir in 1/2 cup chopped pecans for crunch or 1/3 cup golden raisins for a bread pudding-style twist.

For a lighter texture, replace the heavy cream with additional whole milk and reduce the brown sugar to 1/4 cup.

To make ahead, assemble the casserole the night before, cover tightly, and refrigerate. Before baking, let it sit at room temperature for 20–30 minutes while the oven preheats.

A pinch of nutmeg or cardamom adds extra warmth, and 1–2 tablespoons of rum or bourbon whisked into the custard creates a richer, bakery-style flavor.

Store leftovers covered in the refrigerator for up to 3 days. Reheat gently in the oven or microwave before serving.