Preheat oven to 350 degrees. Butter a 9x9 baking dish.
Place the cut croissants into the baking dish so they fit snug. Sprinkle in the cut pieces of banana and push to fall between the pieces of croissant.
Whisk together the eggs, cream, milk, vanilla, and salt. Add half of the chocolate-hazelnut spread and whisk to combine. Pour over the croissants. Let stand at room temperature for 30 minutes. Cover with aluminum foil and place in the oven to bake until the custard is set, about 45 minutes. Uncover and cook for an additional 15 minutes.
Remove and let rest for 15 minutes before serving. Garnish with a few pieces of bananas and a warm drizzle of the remaining chocolate-hazelnut spread.
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Notes
***Recipe reprinted with permission from The Chew: An Essential Guide to Cooking and Entertaining, copyright 2016.
For best results, use good-quality ingredients. Off-brands may vary in taste and produce different results.
Croissants can be pricy. If you have a Sam's Club or Costco membership, you can get a dozen croissants for approximately $6 (as of March 2023).
If you use large croissants, you may only need 4 or 5.
Serve with fresh fruit, such as blueberries or strawberries, for a delicious breakfast.
If you don't have a 9-inch baking dish, you can use an 8x12-inch casserole dish or any dish that is equivalent to a 2.5-quart baking dish.
You can substitute other stale bread for the croissants. Brioche bread, challah bread, and French bread are good substitutes.