01 - In a mixing bowl, beat the softened cream cheese with an electric mixer until completely smooth and free of lumps. Add the granulated sugar and vanilla extract, then continue mixing until light and creamy. Pour in the heavy cream and lemon juice, beating until the mixture is fluffy and well combined.
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 slightly while leaving room at the edges.
03 - Fold the sides of each tortilla inward over the filling, then roll tightly from the bottom edge upward to fully enclose the cheesecake mixture. Secure the seam with a toothpick if needed to prevent unraveling during frying.
04 - Pour vegetable oil into a deep skillet or heavy-bottomed pot to a depth of about 2 inches. Heat the oil to 350°F, using a cooking thermometer to verify the temperature for consistent results.
05 - Carefully lower the chimichangas into the hot oil in small batches, frying for 2 to 3 minutes per side until the tortillas are golden brown and crisp. Avoid overcrowding the pan to maintain even oil temperature.
06 - Using tongs, remove each chimichanga from the oil and immediately roll it in the cinnamon sugar mixture on a shallow plate, coating all surfaces evenly while still hot so the sugar adheres properly.
07 - Transfer the coated chimichangas to a wire rack or paper towel-lined plate. Allow them to cool for a few minutes before serving — the filling will be extremely hot straight from the fryer.