Baked Blueberry Mascarpone French Toast Casserole

Prep: 15 minCook: 45 min6 servingsmediumAmerican
Baked Blueberry Mascarpone French Toast Casserole

A rich breakfast casserole that transforms cubed French bread into an indulgent morning treat. Fresh blueberries and creamy mascarpone cheese create pockets of sweetness throughout, while the custard-like base infused with vanilla and cinnamon bakes to golden perfection. Perfect for weekend brunches or holiday mornings when you want to feed a crowd without standing over the stove. The make-ahead nature allows you to assemble the night before and simply bake in the morning.

Ingredients

6 servings
  • 1 loaf French bread, cut into cubes
    challah1:1rich

    richer, slightly sweeter

    Full guide →
  • 1 cup blueberries, fresh or frozen
  • 1 cup mascarpone cheese
    cream cheese1:1creamy

    slightly tangier flavor

    Full guide →
  • 6 eggs
  • 1 cup milk
    heavy cream1:1rich

    much richer casserole

    Full guide →
  • ½ cup maple syrup
    honey3/4:1sweet

    different flavor profile

    Full guide →
  • 1 tsp vanilla extract
  • ½ tsp ground cinnamon
  • ¼ tsp salt

Instructions

  1. 1

    Preheat oven and grease a baking dish

  2. 2

    Whisk together eggs, milk, maple syrup, vanilla extract, cinnamon, and salt

  3. 3

    Layer half the bread cubes in the baking dish

  4. 4

    Dot with half the mascarpone and sprinkle with half the blueberries

  5. 5

    Repeat layering with remaining bread, mascarpone, and blueberries

  6. 6

    Pour egg mixture evenly over the bread and berries

  7. 7

    Press down lightly to ensure bread absorbs the liquid

  8. 8

    Bake until top is golden brown and center is set

  9. 9

    Cool for a few minutes before serving

Tips

Tip 1

Use day-old bread for better absorption of the custard mixture without becoming mushy.

Tip 2

Let the casserole rest for 10-15 minutes after pouring the egg mixture to ensure even soaking.

Tip 3

Cover with foil if the top browns too quickly during baking.

Good to Know

Storage

Cover and refrigerate for up to 3 days. Reheat individual portions in microwave or warm oven.

Make Ahead

Assemble completely the night before, cover and refrigerate. Add 10-15 minutes to baking time if baking from cold.

Serve With

Serve warm with additional maple syrup, powdered sugar, or fresh berries.

See pairing guide →

Common Mistakes

Watch

Use stale bread to prevent soggy texture from too much moisture absorption.

Watch

Don't skip the resting time to avoid uneven soaking and dry spots.

Substitutions

mascarpone
cream cheese1:1creamy

slightly tangier flavor

Full guide →
French bread
challah1:1rich

richer, slightly sweeter

Full guide →
maple syrup
honey3/4:1sweet

different flavor profile

Full guide →
milk
heavy cream1:1rich

much richer casserole

Full guide →
Find more substitutions →

FAQ

Can I use frozen blueberries?

Yes, use frozen blueberries directly without thawing. They may release slightly more juice during baking.

How long will leftovers keep?

Store covered in refrigerator for up to 3 days. Reheat individual portions in microwave for 30-60 seconds.

Can I make this dairy-free?

Substitute coconut milk for regular milk and use vegan cream cheese instead of mascarpone for similar richness.