01 - In a medium bowl, beat the cream cheese, sugar, vanilla, and sour cream until smooth and creamy.
02 - Lay out the tortillas. Spoon about 2 tablespoons of the cheesecake filling onto the lower third of each tortilla. Add a tablespoon of berries if using.
03 - Fold in the sides and tightly roll up each tortilla to enclose the filling, forming a burrito shape. Secure with toothpicks if needed.
04 - In a deep skillet or saucepan, heat vegetable oil to 350°F.
05 - Fry the chimichangas in batches, seam side down, for 2–3 minutes per side or until golden brown and crisp. Remove with a slotted spoon and drain on paper towels.
06 - Brush each chimichanga with melted butter while still warm.
07 - Combine the cinnamon and sugar in a shallow dish. Roll the warm chimichangas in the cinnamon sugar mixture to coat evenly.
08 - Serve warm, optionally with whipped cream, extra berries, or chocolate sauce.