Overnight Lemon Blueberry French Toast

This Overnight Lemon Blueberry French Toast is bright, fruity, and perfect for spring or summer brunches. You prep it the night before so in the morning all you do is bake and drizzle with a luscious lemon blueberry sauce. It's the kind of dish that looks beautiful on the table and tastes even better.

Why You'll Love This Overnight Lemon Blueberry French Toast

• Make-ahead convenience for stress-free mornings
• Fresh lemon zest and juice for a bright flavor
• Juicy blueberries in both the casserole and the sauce
• Perfect for holidays, showers, or weekend brunch

Pro Tip: Use day-old bread so it soaks up the custard without becoming too soggy.

Ingredients

For the French Toast:

• 1 loaf (about 13 oz) Challah, French, or Italian bread, cubed
• 6 large eggs
• 1 cup blueberries
• 2 cups milk (any kind)
• ¼ cup granulated sugar
• Zest and juice of 1 lemon
• 1 teaspoon vanilla extract

For the Lemon Blueberry Sauce:

• 1 cup granulated sugar
• 2 tablespoon cornstarch
• ¼ cup fresh lemon juice
• 1 ½ cups blueberries

Step-by-Step Instructions

1. Prep the casserole: Grease a 13x9-inch baking dish. Arrange bread cubes in an even layer. In a large bowl, whisk eggs, milk, sugar, lemon zest, lemon juice, and vanilla. Pour half over bread, toss gently, then add remaining mixture. Cover and refrigerate at least 2 hours or overnight.
2. Bake: Preheat oven to 350°F (175°C). Uncover casserole and bake 40 minutes, or until golden brown and center is set.

Make the Lemon Blueberry Sauce

1. In a saucepan, combine sugar, cornstarch, ¾ cup water, and lemon juice. Cook over medium heat, stirring constantly, until it boils.
2. Add blueberries and continue cooking, stirring often, until thickened and berries begin to burst.
3. Keep warm until serving.

Serving Suggestion: Spoon sauce over each portion and add a dollop of whipped cream for extra indulgence.

Tips & Variations

• Swap blueberries for raspberries or blackberries for a twist.
• Add ½ teaspoon almond extract to the custard for a bakery-style flavor.
• Top with sliced almonds before baking for crunch.
• Serve with crispy bacon or sausage for a sweet-and-savory plate.

Storage

Store leftovers in an airtight container in the refrigerator for up to 2 days. Reheat in the oven at 325°F until warmed through. Sauce can be made ahead up to 3 days; store in fridge and reheat gently.

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