
This delightful French toast casserole was inspired by a weekend brunch craving for something warm, comforting, and bursting with flavor. Combining the rich notes of cinnamon with the freshness of mixed berries, this dish brings together the best of both worlds. It's perfect for family gatherings, special occasions, or simply treating yourself to a cozy morning indulgence.
My family absolutely adores this French toast casserole. The aroma of cinnamon wafting through the house in the morning is enough to get everyone out of bed with a smile. It's become a staple for our weekend breakfasts and special occasions alike.
Essential Ingredients
- Bread: Day-old brioche or challah works best for a rich and fluffy texture.
- Eggs: Provide structure and richness to the custard base.
- Milk: Whole milk or a mixture of milk and cream for added creaminess.
- Cinnamon: Adds warmth and depth of flavor.
- Mixed Berries: A combination of strawberries, blueberries, and raspberries for a burst of freshness.
- Maple Syrup: Natural sweetness that enhances the overall flavor.
Step-by-Step Preparation
- Prepare the Bread:
- Cut the day-old bread into cubes and place them evenly in a greased baking dish.
- Mix the Custard:
- In a bowl, whisk together eggs, milk, cinnamon, and a touch of maple syrup until well combined.
- Assemble the Casserole:
- Pour the custard mixture over the bread cubes, ensuring all pieces are soaked. Sprinkle the mixed berries evenly on top.
- Chill:
- Cover the dish and refrigerate for at least 2 hours or overnight to allow the bread to absorb the custard.
- Bake:
- Preheat the oven to 350°F (175°C). Bake the casserole uncovered for 45-50 minutes, or until the top is golden brown and the custard is set.
- Serve:
- Let it cool slightly before serving. Drizzle with additional maple syrup if desired.

One time, I tried this recipe with a mix of blackberries and peaches, and it turned out to be a delightful twist. Don't be afraid to experiment with different fruits to find your perfect combination.
Variations to Try
For a nutty crunch, sprinkle chopped pecans or almonds on top before baking. If you're a chocolate lover, add a handful of chocolate chips to the custard mixture. For a dairy-free version, substitute almond milk and use a plant-based butter alternative.
Storage and Reheating
Leftover casserole can be stored in an airtight container in the refrigerator for up to 3 days. Reheat individual servings in the microwave for 1-2 minutes or warm the entire dish in the oven at 300°F (150°C) until heated through.

Chef's Notes
For an extra touch of indulgence, serve the casserole with a dollop of whipped cream or a scoop of vanilla ice cream. Garnish with fresh mint leaves for a pop of color and freshness.
Frequently Asked Questions
→ Can I prepare this casserole ahead of time? Yes, assemble the casserole the night before and refrigerate. Bake it in the morning for a hassle-free breakfast.
→ Can I use frozen berries? Absolutely. Thaw and drain them before adding to prevent excess moisture.
→ What type of bread works best? Rich, sturdy breads like brioche or challah are ideal, but French bread or sourdough can also be used.
Commonly Asked Questions
- → What ingredients do I need for this chia mango dish?
You'll need chia seeds, coconut milk (or another milk), ripe mangoes, and optionally maple syrup or honey for added sweetness.
- → How long should chia pudding set before serving?
Chill the chia mixture for at least 3 hours or overnight to achieve a creamy, thick texture.
- → Can I make this with other fruits?
Yes, you can swap mango with fruits like berries, peaches, kiwi, or papaya for different flavor variations.
- → How long does it stay fresh?
Stored in an airtight container, it stays fresh in the fridge for up to 4–5 days. For best results, keep layers separate until serving.
- → What’s the ideal chia-to-liquid ratio?
Use 1/4 cup chia seeds to 1–1.5 cups of milk. Adjust slightly for thicker or thinner consistency.
- → Is this suitable for vegan diets?
Yes, as long as you use plant-based milk and sweeteners like maple syrup, it’s completely vegan-friendly.