Berry French Toast Casserole Recipe (Joyous Apron)

Updated November 5, 2026

Total time
8 hr 20 min
prep 20 min · cook 45 min
Serves
8
portions as written

Jump to recipe

Berry French Toast Casserole Recipe (Joyous Apron)

This Berry French Toast Casserole is a make-ahead breakfast that feels like a special occasion but comes together with everyday ingredients. Cubes of bread are soaked overnight in a rich, cinnamon-vanilla custard, then baked with a double dose of juicy berries until puffed and golden. It’s the kind of dish that fills the house with a sweet, bready aroma and serves a crowd without demanding morning effort.

Ingredients

  • 1 large loaf (about 16 oz / 450 g) brioche or challah, cut into 1-inch cubes (about 10 cups)
  • 8 large eggs
  • 2 cups (480 ml) whole milk
  • 1 cup (240 ml) heavy cream
  • 3/4 cup (150 g) granulated sugar
  • 2 teaspoons vanilla extract
  • 1 teaspoon ground cinnamon
  • 1/4 teaspoon ground nutmeg
  • 1/2 teaspoon salt
  • 2 cups (about 300 g) mixed fresh or frozen berries (blueberries, raspberries, sliced strawberries), divided
  • 2 tablespoons (28 g) unsalted butter, melted, for greasing the dish
  • For the streusel topping:
  • 1/2 cup (60 g) all-purpose flour
  • 1/2 cup (100 g) packed brown sugar
  • 1/2 teaspoon ground cinnamon
  • 1/4 cup (56 g) cold unsalted butter, cut into small pieces
  • Powdered sugar, for dusting (optional)

Instructions

  1. Grease a 9×13-inch (23×33 cm) baking dish with the melted butter. Spread the bread cubes evenly in the dish.
  2. In a large bowl, whisk together the eggs, milk, cream, granulated sugar, vanilla, cinnamon, nutmeg, and salt until the sugar is dissolved and the mixture is smooth.
  3. Scatter 1 1/2 cups of the berries over the bread cubes, gently pressing them into the bread. Pour the egg mixture evenly over the bread, making sure all cubes are soaked. Use a spatula to press down lightly so the top pieces get moistened.
  4. Cover the dish tightly with plastic wrap or foil and refrigerate for at least 8 hours, or overnight (up to 24 hours).
  5. When ready to bake, preheat the oven to 350°F (175°C). Remove the dish from the refrigerator and let it sit on the counter while the oven heats (about 20 minutes).
  6. Make the streusel: In a small bowl, mix the flour, brown sugar, and cinnamon. Cut in the cold butter using a pastry blender or your fingertips until the mixture resembles coarse crumbs. Set aside.
  7. Sprinkle the remaining 1/2 cup berries over the top of the casserole, then sprinkle the streusel evenly over everything.
  8. Bake uncovered for 40–45 minutes, until the custard is set and the top is golden brown. The center should be slightly puffed and a knife inserted near the center should come out clean. If using a food thermometer, the center should reach 160°F (71°C) (USDA FSIS safe minimum for egg dishes).
  9. Let cool for 10 minutes before serving. Dust with powdered sugar if desired.

Tips

  • Bread choice: Brioche, challah, or even day-old French bread work best because they are sturdy enough to soak up the custard without turning mushy. If using regular sandwich bread, reduce the soaking time to 4–6 hours and use slightly less liquid.
  • Frozen berries: You can use frozen berries without thawing; just add them straight to the dish. They will release a bit more juice during baking, which is fine. If you prefer a less “jammyâ€� texture, toss the berries in a tablespoon of flour before adding.
  • Don’t skip the soak: The overnight rest is what transforms the bread into a custardy, pudding-like casserole. If you’re short on time, aim for at least 4 hours, but the texture will be noticeably better with the full 8.
  • Check for doneness: Ovens vary, so start checking at 35 minutes. The casserole is done when the center is just set and no longer jiggles. Overbaking can dry it out.

Serving Suggestions

Serve warm, straight from the dish, with a drizzle of maple syrup or a spoonful of vanilla yogurt. A side of crispy bacon or breakfast sausage balances the sweetness. For a brunch spread, pair it with a fresh green salad or roasted potatoes.

Variations

  • Peach or Apple: Swap the berries for 2 cups of sliced peaches or diced apples. For apples, sauté them in a little butter first to soften.
  • Chocolate-Hazelnut: Spread a thin layer of chocolate-hazelnut spread between bread cubes before adding the custard, and skip the berries.
  • Citrus: Add 1 tablespoon of orange zest and replace the vanilla with 1 teaspoon of orange blossom water.
  • Savory-Sweet: Reduce sugar to 1/4 cup, omit the berries, and add 1/2 cup cooked crumbled sausage and 1 cup shredded cheddar cheese.

Storage and Reheating

Refrigerate leftovers in an airtight container for up to 4 days. To reheat, place a portion on a microwave-safe plate and heat in 30-second bursts until warmed through. For a crispier texture, reheat in a 350°F (175°C) oven for 10–15 minutes. You can also freeze the baked casserole for up to 2 months; thaw overnight in the fridge and reheat as directed.

Frequently Asked Questions

Can I assemble this the night before? Yes, that’s the whole idea. Assemble the casserole, cover, and refrigerate for at least 8 hours. The longer soak makes the custard more even.

Can I use a different type of milk? Yes. Whole milk gives the richest texture, but you can use 2% or even almond milk. Keep in mind that lower-fat milks will produce a slightly less creamy custard.

What if I don’t have brioche? Use any sturdy bread like sourdough, French bread, or even croissants. Avoid soft sandwich bread unless you reduce the liquid and soaking time.

Why did my casserole turn out soggy? This usually happens if the bread was too soft or the custard ratio was too high. Make sure to use a sturdy bread and press it down gently before refrigerating so it absorbs evenly. Also, don’t overbake—it should be set but still moist.

Can I make this gluten-free? Yes, use a gluten-free bread that’s sturdy, like a crusty gluten-free sourdough. The rest of the ingredients are naturally gluten-free, but check your baking powder if you use it.

How do I know when it’s fully cooked? The center should be just set and a knife inserted near the middle should come out clean. If using a thermometer, the center should read 160°F (71°C) per USDA FSIS guidelines for egg dishes.

Related

More recipes to cook

Safety notes: safe minimum internal temperatures from USDA FSIS; raw and undercooked fish guidance from the U.S. FDA. Food safety notes

Spotted an error? Tell us and we will correct it (corrections policy).