Overnight Blueberry French Toast

INGREDIENTS

• 12 slices day-old bread, cut into 1-inch cubes
• 2 (8 ounce) packages cream cheese, cut into 1 inch cubes
• 1 cup fresh blueberries
• 12 eggs, beaten
• 2 cups milk
• 1 teaspoon vanilla extract
• 1/3 cup maple syrup
• 1 cup white sugar
• 2 tablespoons cornstarch
• 1 cup water
• 1 tablespoon butter