Lemon Blueberry French Toast Casserole can be made overnight and tastes like a combination of bread pudding and gourmet French toast. Perfect for Easter brunch or Mother's Day!
Grease a 13-by-9-inch or similarly sized baking pan.
Place the bread cubes in the prepared pan. In a large bowl, whisk together all the remaining ingredients until very well combined. Pour half of the egg-milk mixture over the bread and stir to moisten.
Top with the remaining egg-milk mixture to cover completely. Cover the pan and refrigerate for at least 2 hours or overnight.
Preheat the oven to 350°F.
Bake uncovered for 40 minutes, or until golden brown.
Make the sauce:
While the French toast is baking, combine the sugar, cornstarch, 3/4 cup water, and the lemon juice in a small saucepan. Bring to a boil over medium heat. Add the blueberries and continue to boil, stirring often, until the syrup thickens and the blueberries begin to burst. Keep warm until ready to use.*
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Notes
* The lemon blueberry topping can be made, cooled, covered, and refrigerated for a few days. Just rewarm when ready to serve!