01 - In a medium mixing bowl, blend the softened cream cheese, powdered sugar, and vanilla extract with a spatula or hand mixer until completely smooth and creamy. Gently fold in the fresh blueberries, taking care not to crush them.
02 - Lay out 4 slices of bread on a clean work surface. Divide the cheesecake filling evenly among them, spreading it to within a ¼-inch border of each edge. Place the remaining 4 bread slices on top to form 4 stuffed sandwiches, pressing gently to seal.
03 - In a shallow dish or pie plate, whisk together the eggs, milk, granulated sugar, vanilla extract, ground cinnamon, and salt until fully combined and uniform in color.
04 - Melt 1 tablespoon of butter in a large skillet or on a griddle over medium heat, tilting the pan to coat the surface evenly.
05 - Dip each stuffed sandwich into the egg custard, briefly coating both sides — avoid soaking, as the bread will become soggy. Place the dipped sandwiches in the hot skillet and cook for 3 to 4 minutes per side until deeply golden brown and heated through. Add the remaining tablespoon of butter before cooking the second batch if needed.
06 - Transfer the cooked French toast to plates immediately. Garnish with extra fresh blueberries, a generous dusting of powdered sugar, and a warm drizzle of maple syrup. Serve right away while hot and crisp.