In a small bowl, mix the strawberry jam with cornstarch. Crack the egg into a second small bowl, add the milk and whisk to create the egg wash.
Flour a large work surface and lay both pie crusts out on it. Roll the circles out to be 11 inches across. Use a knife or pizza cutter to cut the edges off to create two 9-inch squares. Then cut into 6 rectangles per pie dough (12 in total). Keep the excess dough to create more strips!
Take 6 of the rectangles and cut each into 6 strips length wise. Cut excess pie dough into different length strips as well.
Brush the egg wash around the edges. Spoon 2 tablespoons of jam into the center of 6 of the rectangles, leaving about ¼ inch of dough around the edges. Place pie dough strips, one at a time, across the top, using about 10-12 strips of dough and gently pressing down on the edges.. If overlapping another strip, egg wash to ensure they stick. Repeat with remaining pie crusts. Brush the top of the dough strips with more egg wash.
Preheat the air fryer to 360 degrees Fahrenheit. Once preheated, place 4 pop tarts in the basket and cook for 8-10 minutes, or until golden brown. Remove from the air fryer and allow to cool for 10 minutes.
Add white chocolate chips to a heat proof bowl and microwave in 20 second increments, stirring in between, until melted and smooth.
Dust the pop tarts with powdered sugar. Use a butter knife to spread a little of the melted white chocolate to the backs of the candy eyes and stick to the pastry. Serve and enjoy!