01 - Beat the cream cheese, sugar, vanilla, and sour cream in a medium bowl until smooth and creamy.
02 - Lay out tortillas. Spoon about 2 tablespoons of cheesecake filling onto the lower third of each tortilla. Add a tablespoon of berries if desired.
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 - Heat vegetable oil in a deep skillet or saucepan to 350°F.
05 - Fry chimichangas in batches, seam side down, for 2 to 3 minutes per side 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 cinnamon and sugar in a shallow dish. Roll warm chimichangas in the mixture to coat evenly.
08 - Serve warm, optionally with whipped cream, extra berries, or chocolate sauce.