01 - In a mixing bowl, beat the softened cream cheese until completely smooth. Add granulated sugar and vanilla extract, mixing until creamy and well incorporated. Pour in the heavy cream and lemon juice, then beat until the mixture is light, fluffy, and homogeneous.
02 - Lay each flour tortilla flat on a clean work surface. Spoon approximately 2 to 3 tablespoons of the cheesecake filling onto the lower third of each tortilla, spreading it gently while leaving space at the edges.
03 - Fold in both sides of each tortilla toward the center, then roll tightly from the bottom edge upward to fully enclose the filling. Secure with toothpicks if needed to prevent unrolling during frying.
04 - Pour vegetable oil to a depth of 2 inches into a deep skillet or heavy-bottomed pot. Heat over medium-high heat until a cooking thermometer registers 350°F.
05 - Carefully lower the chimichangas into the hot oil in small batches, frying for 2 to 3 minutes per side until deeply golden brown and crisp on all surfaces.
06 - Using tongs, remove each fried chimichanga from the oil and immediately roll it in the cinnamon sugar mixture on a shallow plate, coating all sides evenly while still hot.
07 - Transfer the coated chimichangas to a wire rack or paper towel-lined plate. Allow to cool for a few minutes before serving to let the filling set slightly.