This potato bread French toast casserole turns thick slices of soft, hearty potato bread into a custardy, golden-baked breakfast that feeds a crowd with minimal fuss. The bread’s naturally dense crumb soaks up the egg mixture without turning mushy, giving you a casserole that’s crisp on top, tender in the middle, and full of vanilla-warm flavor. It’s the perfect make-ahead dish for holidays, brunches, or lazy weekends.
Ingredients
- 1 loaf (about 16 oz / 450 g) potato bread, sliced 1 inch thick (about 10–12 slices)
- 8 large eggs
- 2 cups (480 ml) whole milk
- 1/2 cup (120 ml) heavy cream
- 1/2 cup (100 g) granulated sugar
- 1 tablespoon vanilla extract
- 1 teaspoon ground cinnamon
- 1/4 teaspoon ground nutmeg
- 1/4 teaspoon salt
- For the topping:
- 1/4 cup (30 g) all-purpose flour
- 1/4 cup (50 g) packed brown sugar
- 1/4 cup (30 g) chopped pecans or walnuts (optional)
- 3 tablespoons (42 g) cold unsalted butter, cut into small pieces
Instructions
- Grease a 9×13-inch (23×33 cm) baking dish with butter or nonstick spray.
- Arrange the potato bread slices in the dish, slightly overlapping if needed. If the slices are very thick, you can cut them into halves or cubes to fit evenly.
- 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.
- Pour the egg mixture evenly over the bread, using a spatula to gently press down on the slices so they absorb the liquid. Let sit for 10 minutes at room temperature, pressing occasionally.
- Meanwhile, make the topping: in a small bowl, combine the flour, brown sugar, and nuts (if using). Cut in the cold butter with a pastry blender or your fingers until the mixture resembles coarse crumbs.
- Sprinkle the topping evenly over the casserole.
- Cover the dish with foil and refrigerate for at least 30 minutes, or up to overnight (see Tips).
- When ready to bake, preheat the oven to 350°F (175°C).
- Bake covered for 30 minutes, then remove the foil and bake for an additional 15–20 minutes, until the top is golden brown and the center is set. The internal temperature of the egg mixture should reach 160°F (71°C) as the safe minimum for egg dishes, per USDA FSIS guidelines. Check with a food thermometer inserted into the center.
- Let rest for 5–10 minutes before slicing and serving.
Tips
- Bread choice: Use a good-quality potato bread with a soft but sturdy crumb. If you can only find thin slices, use more slices (about 14–16) and layer them in two rows. Day-old or slightly stale bread works even better—it soaks up the custard without falling apart.
- Make-ahead: Assemble the casserole the night before, cover, and refrigerate for up to 12 hours. Add 10–15 minutes to the covered baking time if starting from cold.
- Don’t over-soak: If you leave the bread soaking for more than 30 minutes at room temperature, it can become too soft. Refrigerate if soaking longer.
- Check for doneness: The center should be just set—not jiggly. A knife inserted near the middle should come out clean, or use a thermometer to confirm 160°F (71°C).
Serving Suggestions
Serve warm with a drizzle of maple syrup, a dusting of powdered sugar, or a dollop of whipped cream. Fresh berries, sliced bananas, or sautéed apples add brightness. For a savory contrast, pair with crispy bacon or breakfast sausage. A side of yogurt or fresh orange juice rounds out the meal.
Variations
- Berry Bliss: Scatter 1 cup (150 g) fresh or frozen blueberries, raspberries, or chopped strawberries over the bread before pouring the custard.
- Chocolate Hazelnut: Spread a thin layer of chocolate-hazelnut spread on each slice of bread before assembling, and skip the nutmeg.
- Pumpkin Spice: Replace the heavy cream with 1/2 cup (120 ml) pumpkin purée and add 1 teaspoon pumpkin pie spice instead of cinnamon and nutmeg.
- Savory Twist: Omit the sugar, vanilla, and cinnamon. Add 1 cup (100 g) shredded cheddar cheese, 1/4 cup (25 g) grated Parmesan, and 1/4 cup (25 g) chopped chives. Use only 1/4 cup (60 ml) milk and 2 tablespoons butter. Bake as directed, but reduce sugar to 1 tablespoon.
Storage and Reheating
Refrigerate leftovers in an airtight container for up to 3 days. To reheat, place a portion on a microwave-safe plate and microwave for 1–2 minutes, or warm in a 350°F (175°C) oven for 10–15 minutes until heated through. The topping may soften on reheating, but the flavor remains. You can also freeze the baked casserole for up to 2 months—wrap tightly in foil and thaw overnight in the refrigerator before reheating.
Frequently Asked Questions
Can I use regular sandwich bread instead of potato bread? Yes, but the texture will be softer and less sturdy. Use a slightly thicker slice or reduce the soaking time to 5 minutes to avoid mushiness.
Why did my casserole turn out soggy? Sogginess usually comes from over-soaking the bread or using a very soft bread that can’t hold the custard. Make sure to press the bread gently and not let it sit too long at room temperature. Also, bake until the center is fully set.
Can I make this dairy-free? Substitute the milk and cream with unsweetened almond, oat, or coconut milk (full-fat for richness). Use a dairy-free butter alternative in the topping. The casserole will be slightly less creamy but still delicious.
How do I know when it’s fully cooked? The center should be puffed and golden, and a knife inserted near the middle should come out clean. For safety, the internal temperature should reach 160°F (71°C).
Can I use frozen potato bread? Yes, thaw it completely first and pat dry with a paper towel. Proceed with the recipe as written.
Can I skip the topping? Absolutely—the casserole is still great without it. If you skip it, consider adding a few extra pats of butter on top before baking for extra richness.
Related
- Malva Pudding with Milk Tart Topping Recipe
- Malva Pudding Recipe (Woolworths Style)
- Malva Pudding Syrup: Recipe & Pouring Guide
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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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