Transform Leftover Challah Into a Sweet, Custardy Breakfast Casserole

This easy, tender challah breakfast casserole—which is packed full of dried fruit and topped with a simple streusel—takes all of 15 minutes to prep before you pop it into the fridge to sit overnight. Bake it in the morning for a sweet breakfast that will fill your home with the scent of brown sugar and butter.

Challah Breakfast bake servings on 3 different plates, with a forks, coffee, milk and tray of challah bake, blueberries and peaches in the background on a pink textile
Serious Eats / Lorena Masso

A large, golden loaf of challah is glorious. The Jewish bread—a staple for Shabbat and holidays—is enriched with eggs and oil, and its plush crumb makes it particularly delicious for eating on its own or turning into French toast. As a child, I watched my mom make challah from scratch; she’d carefully braid the dough, then set it aside to proof before baking. I eagerly tore into the loaves when they were just out of the oven, relishing each bite of the tender, freshly baked bread. Though I still love challah and eat it frequently, I rarely bake it at home. To satiate my challah cravings, I often buy large loaves on a whim, which leaves me with more than enough bread to eat for weeks.

Challah Breakfast bake in a tray. Glasses of milk, coffee, and bowls of fruit and blueberries, on a pink textile
Serious Eats / Lorena Masso

Some people might wrap up the extra bread and stash it in their freezer, or turn the loaf into breadcrumbs, French toast, or croutons. I, however, prefer to turn my challah into a custardy breakfast casserole for my friends and family. Made with a few fridge and pantry staples, this easy dish—which is packed full of dried fruit and topped with a simple streusel—takes all of 15 minutes to prep before you pop it into the fridge to sit overnight. For that reason, it’s my go-to breakfast for holidays and special occasions when I have plenty of people to feed, but it's easy enough to make any time you have challah—whether leftover or purchased just for this bake. Here’s how to make it, plus some tips for getting it just right.

4 Tips for Making a Tender Challah Breakfast Casserole

Don’t worry about drying the bread. Many French toast, casserole, and bread pudding recipes call for stale or dry bread, but in my testing, I found little difference between the casserole made with fresh bread and the one prepared with older bread. Using drier bread may be beneficial for French toast, as fresh bread can fall apart easily after soaking. But that doesn't matter here, since there’s no dipping and frying involved.  So use whatever bread you have on hand, whether that’s fresh or stale. 

challah pieces arranged on a 9 x 13 baking dish
Serious Eats / Lorena Masso

Reach for your favorite dried fruit. For a touch of sweetness and a pop of color, I incorporate dried fruit into my casserole. I like to use apricots, cherries, golden raisins, and cranberries, but you can use whatever dried fruit you have on hand or customize the mix to create the flavor profile you want. Sometimes, I make a hamantaschen-inspired casserole by using prunes and poppy seeds or give it Rosh Hashanah vibes with fresh chopped apples. For a post-Pesach weekend brunch, I’ll swap the almond extract for an extra teaspoon of cinnamon and toss in walnuts and apples for a flavor that’s reminiscent of charoset

Soak it overnight. When I first started making this challah breakfast casserole, I par-baked it the night before, then popped it into the oven to finish baking the morning I had to serve it. It was my go-to method, until my testing revealed that an overnight soak resulted in a softer casserole with a custardy texture. It may be tempting to skip the overnight soak, but it really is worth taking the time to let the bread sit in the custard for a tender, delicious casserole with no dry spots.

Challah Breakfast bake in a tray, with a serving taken out onto a plate. Glasses of milk, coffee, and bowls of fruit and blueberries, on a pink textile
Serious Eats / Lorena Masso

Top it with a streusel. For extra crunch, I top my challah breakfast casserole with a simple streusel of flour, brown sugar, and butter. Though I prefer to make the streusel topping in a food processor, you can also make it by hand by tossing the dry ingredients with butter until it’s a crumbly mixture. The topping brings a satisfying crunch and just enough sweetness, making it unnecessary to serve the casserole with a sauce or syrup.

For the Casserole Base: In a medium bowl, cover dried fruit with 2 cups (475ml) hot water. Let fruit sit until rehydrated, about 5 minutes. Using a fine-mesh strainer, drain fruit and set aside.

Dried fruit in a large bowl submerged in water
Serious Eats / Lorena Masso

In a large bowl, whisk eggs, heavy cream, milk, cinnamon, salt, vanilla extract, and almond extract until well-combined and no streaks of egg remain, about 30 seconds; set aside.

Eggs, custard and spices in various bowls and measuring cups
Serious Eats / Lorena Masso

In a 9- by 13-inch baking dish, arrange challah in an even layer.

challah pieces arranged on a 9 x 13 baking dish
Serious Eats / Lorena Masso

Pour the custard mixture over challah. Using clean hands, toss challah to evenly coat with custard. Sprinkle top of challah with dried fruit, followed by the sliced almonds. Wrap tightly with plastic wrap and refrigerate until challah is evenly soaked through with custard, at least 4 hours and up to 12.

4 image collage. Top left: Custard poured onto challah in baking dish. Top Right: Coating challah with mixture in baking dish. Bottom Left:Challah sprinkled with dried fruit. Bottom Right: Prepared Challah bake covered with plastic wrap
Serious Eats / Lorena Masso

For the Streusel: In a food processor, pulse flour, sugar, salt, and cold butter until crumbly and resembles a coarse meal, about 30 seconds. Transfer streusel to an airtight container and refrigerate until ready to use. (Alternatively: In a medium bowl, whisk together flour, sugar, and salt. Add butter to flour mixture and toss with fingers until butter pieces are thoroughly coated with flour mixture. With fingertips, smash each cube flat and continue pressing and breaking up the butter until you have pea-size pieces and a crumbly mixture that resembles a coarse meal.)

Streusel crumbled in food processor
Serious Eats / Lorena Masso

To Bake: 1 hour before you’re ready to bake, remove casserole and streusel from the fridge and allow both to come to room temperature, 30 to 60 minutes. Adjust oven rack to middle position and preheat oven to 350ºF (175ºC).

Casserole and crumbled streusel in a food processor side by side.
Serious Eats / Lorena Masso

Top casserole with an even layer of streusel. Bake until golden brown and firm to the touch, 35 to 40 minutes.

Overnight challah breakfast bake in a baking tin
Serious Eats / Lorena Masso

Remove from oven and allow casserole to cool slightly before serving, about 10 minutes.

Challah breakfast bake in tin on a cooling rack
Serious Eats / Lorena Masso

Special Equipment

9- by 13-inch baking dish, food processor

Make-Ahead and Storage

Leftovers can be refrigerated in an airtight container for up to 5 days.