This single serve French toast casserole gives you all the cozy, custardy goodness of a baked French toast breakfast without committing to a full 9×13 pan. It’s made with a few slices of bread, a simple egg-milk custard, and a buttery cinnamon topping, baked in a small ramekin or oven-safe dish. It works because the custard ratio is scaled down perfectly, so you get a tender, slightly crisp top and a soft, almost bread-pudding center every time.
Ingredients
- 2 slices (about 70 g) thick-cut bread, such as brioche, challah, or sourdough
- 1 large egg (50 g)
- 1/3 cup (80 ml) whole milk or half-and-half
- 1 tablespoon (15 ml) maple syrup, plus more for serving
- 1/2 teaspoon vanilla extract
- 1/4 teaspoon ground cinnamon
- Pinch of salt
- 1 tablespoon (14 g) unsalted butter, melted
- 1 tablespoon (15 g) brown sugar
Instructions
- Preheat your oven to 350°F (175°C). Lightly grease a 10-ounce (300 ml) ramekin or small oven-safe dish with butter or nonstick spray.
- Cut the bread into 1-inch (2.5 cm) cubes. Place them in the prepared ramekin – they should fill it almost to the top.
- In a small bowl, whisk together the egg, milk, maple syrup, vanilla, cinnamon, and salt until fully combined.
- Pour the custard evenly over the bread cubes. Gently press the bread down with a fork so all pieces are soaked. Let it sit for 5 minutes, pressing occasionally, to absorb the liquid.
- In another small bowl, mix the melted butter and brown sugar until it forms a crumbly paste. Sprinkle this over the top of the casserole.
- Bake for 22–25 minutes, until the top is golden and the custard is set – a knife inserted in the center should come out clean. If you want to check with a thermometer, the center should reach 160°F (71°C), which is the USDA FSIS safe minimum for egg dishes.
- Let it cool for 2–3 minutes before serving. Drizzle with extra maple syrup if desired.
Tips
- Bread choice: Stale or slightly dried bread absorbs custard better and holds its shape. If using fresh bread, toast it lightly before cubing.
- Don’t skip the soak: The 5-minute rest lets the custard penetrate the bread; skipping it leads to dry spots.
- Dish size matters: Use a 10-ounce (300 ml) ramekin. If your dish is too large, the casserole will be shallow and cook faster; if too small, it may overflow.
- Make it ahead: Assemble the casserole the night before, cover, and refrigerate. Add 5–7 minutes to the bake time.
Serving Suggestions
Serve this casserole warm with a drizzle of maple syrup and a pat of butter. It pairs well with fresh berries, a side of crispy bacon or sausage, or a dollop of whipped cream. For a brunch spread, add a small fruit salad or a glass of fresh orange juice.
Variations
- Chocolate chip: Sprinkle 1–2 tablespoons of mini chocolate chips over the bread before adding the custard.
- Apple cinnamon: Sauté 1/4 cup (40 g) diced apple in butter with a pinch of cinnamon, then fold into the bread cubes.
- Vegan: Use 1/4 cup (60 ml) unsweetened plant milk (like oat or almond) mixed with 1 tablespoon ground flaxseed and 2 tablespoons water as the egg substitute. Use vegan butter and skip the brown sugar topping or use coconut sugar.
- Savory: Omit the maple syrup, vanilla, and cinnamon. Add 1/4 cup (30 g) shredded cheese and 2 tablespoons cooked crumbled bacon to the custard.
Storage and Reheating
Store any leftover casserole (if there is any) in an airtight container in the refrigerator for up to 3 days. To reheat, microwave on medium power for 45–60 seconds, or warm in a toaster oven at 300°F (150°C) for 8–10 minutes. The texture will be a bit softer than fresh, but still delicious. You can also freeze the baked casserole for up to 1 month; thaw overnight in the fridge and reheat as above.
Frequently Asked Questions
Can I use regular sandwich bread? Yes, but reduce the milk to 1/4 cup (60 ml) and use 3 slices, since sandwich bread is thinner and more porous. The casserole will be softer and slightly less structured.
Why is my casserole soggy in the middle? That usually means the custard didn’t set fully – either the dish was too deep, the oven temperature was off, or it wasn’t baked long enough. Make sure your ramekin is the right size and always let it rest after baking; the residual heat finishes the set.
Can I make this in a microwave? Yes, but the texture will be more like a steamed pudding. Microwave on medium power for 1–2 minutes, checking every 30 seconds, until set. It won’t have a crispy top, but it’s a quick option.
What if I don’t have maple syrup? Use honey or agave nectar, or simply add an extra teaspoon of sugar to the custard. For a sugar-free version, use a few drops of stevia or skip the sweetener entirely.
Can I double this recipe? Absolutely. Double all ingredients and bake in a 2-cup (500 ml) dish or two ramekins. Increase the bake time by 3–5 minutes if using one larger dish.
Is it safe to leave it out overnight? No. Per food safety guidelines, any dish containing eggs and dairy should not sit at room temperature for more than 2 hours. If you’re making it ahead, refrigerate it.
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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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