Coat a 9x13 inch baking dish with cooking spray. Place 1/2 of the bread cubes in dish; top with 1 1/2 cups blueberries. Scatter cream cheese over berries. Cover with remaining bread cubes. In a mixing bowl, whisk together eggs, maple syrup, and milk. Pour egg mixture over bread in pan. Cover, and chill overnight.Advertisement
Preheat oven to 350 degrees F (175 degrees C).
Bake strata, covered, for 30 minutes. Remove cover, and bake for an additional 30 minutes.
While the strata is baking, prepare the blueberry syrup. Combine sugar, cornstarch, and water in a saucepan. Bring mixture to a boil over high heat; cook for 5 minutes. Pour in remaining 1 1/2 cups blueberries; continue cooking for 10 minutes. Remove from heat, and stir in butter. Serve warm over slices of the strata.
If using frozen blueberries, drain before adding to strata.