Line a large baking tray.
Remove the pie crust from the refrigerator. Roll flat and cut out about 18 hearts using a cookie cutter. Place 9 of these hearts onto the lined baking tray. On the other 9, score a small X (cross) in the middle).
Top each of the hearts on the baking sheet, add 1-2 teaspoons of the cherry pie filling. Don't overfill, and leave some space at the edges.
Top the pies with the remaining 9 hearts. Crimp the edges to seal using a fork, then brush with beaten egg. Place in the refrigerator 10 minutes or so, just while the oven preheats.
Preheat oven to 400℉/200℃.
Bake 16-17 minutes - until the pies are golden brown! Remove and let cool on a wire rack - dust with powdered sugar for a little extra sparkle!