Ingredients
Equipment
Method
Prep
- Preheat oven to 350 degrees F. Grease a 9x13 inch baking dish with butter or nonstick spray. Open the cinnamon roll tubes and set the icing packets aside for later.
- Cut each cinnamon roll into 6 pieces. Scatter half the pieces evenly in the prepared dish. Dollop half the pumpkin puree over the dough in small spoonfuls. Repeat with remaining dough and pumpkin, creating a rustic, uneven layer.
- In a large bowl, whisk together eggs, milk, heavy cream, brown sugar, vanilla, and pumpkin pie spice until completely smooth and no streaks of egg remain, about 30 seconds.
- Pour the custard evenly over the dough and pumpkin. Press down gently with a spatula so all pieces get soaked. Let sit 10 minutes while the oven finishes preheating - this helps the custard absorb.
- Stir together melted butter, granulated sugar, and cinnamon. Drizzle over the top. Bake until puffed, golden at the edges, and set in the center when you jiggle the pan, 38 to 42 minutes. A knife inserted near the center should come out with just a few moist crumbs.
- Warm the reserved icing in the microwave for 10 to 15 seconds until pourable. Drizzle over the hot casserole. Let cool 5 minutes before serving - it will settle and slice more cleanly.
Notes
Make it the night before: Assemble through the soaking step, cover tightly, and refrigerate up to 12 hours. Add 5 minutes to the bake time if starting cold. For a less sweet version, skip the butter-sugar drizzle and use just the cinnamon roll icing. Leftovers reheat beautifully in a 325 degree oven for 10 minutes - the edges stay crisp while the center stays custardy.
