French toast casserole is a baked dish made with bread cubes soaked in a custard of eggs, milk, and cinnamon, then baked until golden and puffy. It delivers all the flavor of classic French toast without standing at the stove flipping slices. This same-day version skips the overnight chill, so you can mix it, bake it, and serve it in about an hour—perfect for a weekend breakfast or a holiday brunch when you forgot to prep ahead.
Ingredients
- 1 loaf (about 14 oz / 400 g) day-old brioche, challah, or French bread, cut into 1-inch cubes (about 10 cups)
- 8 large eggs
- 2 cups (480 ml) whole milk
- 1/2 cup (120 ml) heavy cream
- 1/2 cup (100 g) granulated sugar
- 2 teaspoons vanilla extract
- 1 teaspoon ground cinnamon
- 1/4 teaspoon ground nutmeg
- 1/4 teaspoon salt
- For the topping: 1/4 cup (55 g) unsalted butter, melted, plus 2 tablespoons (25 g) brown sugar and 1/2 teaspoon cinnamon (optional)
Instructions
- Preheat your oven to 350°F (175°C). Grease a 9×13-inch (23×33 cm) baking dish with butter or nonstick spray.
- Place the bread cubes in the prepared dish, spreading them evenly. If your bread is very fresh, toast it in the oven for 5 minutes first to dry it out slightly (this helps it soak up custard without turning mushy).
- In a large bowl, whisk together the eggs, milk, cream, sugar, vanilla, cinnamon, nutmeg, and salt until the sugar is dissolved and the mixture is smooth.
- Pour the custard evenly over the bread cubes. Gently press down on the bread with a spatula to help it absorb the liquid. Let it sit for 10 minutes at room temperature, pressing occasionally.
- If using the topping, stir together the melted butter, brown sugar, and cinnamon in a small bowl. Drizzle or brush it over the top of the casserole.
- Bake for 40–45 minutes, until the casserole is puffed and golden brown, and the center is set (a knife inserted in the middle should come out clean). The internal temperature of the egg mixture should reach 160°F (71°C), the USDA FSIS safe minimum for egg dishes; check with a food thermometer if you’re unsure.
- Let the casserole rest for 5 minutes before serving. It will deflate slightly as it cools.
Tips
- Use stale bread: Day-old bread absorbs custard better and holds its texture. If using fresh bread, cube it and let it sit out for an hour, or toast it briefly in the oven.
- Don’t over-soak: For a same-day bake, 10 minutes is enough. Soaking longer without baking can make the bread too soggy and the casserole dense.
- Check doneness: The center should be just set—not jiggly. If the top browns too quickly, cover loosely with foil for the last 10 minutes.
- Substitutions: Replace heavy cream with half-and-half or extra milk for a lighter version. Use a gluten-free bread if needed; it may need a slightly shorter soak.
Serving Suggestions
Serve warm with maple syrup, a dusting of powdered sugar, or a dollop of whipped cream. Fresh berries, sliced bananas, or a spoonful of apple compote add brightness. For a savory contrast, pair with crispy bacon or breakfast sausage. A side of yogurt or fresh orange slices balances the richness.
Variations
- Berry French toast casserole: Scatter 1 cup (150 g) fresh or frozen blueberries or raspberries over the bread before pouring the custard.
- Apple-cinnamon: Sauté 2 peeled, diced apples in butter with 1 teaspoon cinnamon for 5 minutes, then fold into the bread cubes.
- Chocolate-hazelnut: Spread a thin layer of chocolate-hazelnut spread on half the bread cubes before assembling, then proceed.
- Savory version: Omit the sugar, vanilla, and nutmeg. Add 1 cup (100 g) shredded cheese, 1/4 cup chopped chives, and 1/2 teaspoon black pepper to the custard. Bake as directed.
Storage and Reheating
Refrigerate leftovers in an airtight container for up to 3 days. To reheat, microwave individual portions for 30–60 seconds, or warm in a 350°F (175°C) oven for 10–15 minutes until heated through. For a crispier texture, reheat in a toaster oven or under the broiler for 2–3 minutes. You can also freeze the baked casserole for up to 2 months; thaw overnight in the refrigerator and reheat in the oven at 350°F (175°C) until hot.
Frequently Asked Questions
Can I make this casserole the night before? Yes, but this recipe is designed for same-day baking. If you want to prep ahead, assemble the casserole, cover, and refrigerate for up to 12 hours. Increase the baking time by 10–15 minutes, and let it sit at room temperature for 20 minutes before baking.
Why is my casserole soggy in the middle? Sogginess usually means the bread didn’t absorb the custard evenly or it was underbaked. Press the bread down gently after pouring the custard, and make sure the center reaches 160°F (71°C). Also, avoid using very soft sandwich bread that disintegrates.
Can I use a different type of bread? Yes. Brioche, challah, French bread, sourdough, or even croissants all work well. Avoid pre-sliced sandwich bread, as it becomes too mushy. A denser bread like sourdough may need a little more custard.
Can I use non-dairy milk? Yes, almond, oat, or soy milk can replace the whole milk. Use a full-fat version for richness. Coconut cream can substitute for heavy cream, but it will add a coconut flavor.
How do I know when it’s done? The casserole should be golden brown and puffed. Insert a knife near the center—if it comes out clean, it’s done. A food thermometer should read 160°F (71°C) in the center.
Can I make this without eggs? Egg substitutes like flax eggs or commercial egg replacers can work, but the texture will be less custardy. For a vegan version, use a recipe specifically designed for that, as the ratios differ.
Related
- Greggs Frozen Sausage Rolls: Bake at Home Guide
- Greggs Sausage Rolls Recipe (Copycat)
- Grinch Fruit Platter: Easy Holiday Recipe
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Safety notes: safe minimum internal temperatures from USDA FSIS; raw and undercooked fish guidance from the U.S. FDA. Food safety notes
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