In a bowl, combine crumbled feta cheese, mozzarella and chopped parsley. Set aside.
Cut each phyllo sheet lengthwise into 4 equal strips.
Place one strip in front of you and keep the remaining strips covered with a tea towel so they don’t dry out.
Put about 1 tablespoon of the filling on one end of the strip.
Fold the two long edges slightly inward to cover the filling.
Roll the strip tightly toward the other end.
Brush a little water on the tip of the strip to seal, then place it on a plate. Cover them with a towel.
Repeat the same process with the remaining strips, always keeping the unused ones under the towel.
Heat oil in a frying pan over medium-high heat until hot.
Fry the rolls in batches, turning occasionally, until golden and crispy.
Transfer them onto a plate lined with paper towels to drain excess oil. Serve warm or at room temperature.
NOTES
Remember to cover the phyllo dough sheets with a kitchen towel after removing them from the package so that they won't dry out. This is very important.
Make sure to secure the filling well to prevent the cheese from oozing when frying.
Don't overfill the rolls, otherwise the cheese filling will easily ooze.
If the cheese starts to ooze when frying your sigara börek, it will splatter hot oil. So be careful not to burn your hands.
Don't overcrowd the pan, otherwise the temperature of the oil will reduce and your rolls won't be fried well.
To prepare a simple yogurt sauce: Mix Greek yogurt, a little salt, red pepper flakes and dried mint well. And serve this in a bowl on the side of your sigara borek.