In a small bowl, dissolve the cornstarch and water. Set aside. In a medium saucepan, add the strawberries, sugar, and vanilla extract. Stir, and bring to simmer for 12-15 minutes. Remove the strawberry mixture from the heat and sat aside to cool completely.
On a flour surface, roll out the puff pastry into a a square. Cut in 4 even size. Add about 1 tsp. of the strawberry mixture to the center of the dough. To avoid the filling running out, add more strawberries than the syrup. Roll over diagonally, press down with your thumb, and press down again with a fork to seal completely. Sealing the edges will prevent the liquid from dripping out.
Repeat the steps with the remaining dough. Air Fry for 18 minutes on 400°.
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Notes
*** Calories are estimated per serving**** When printing the recipe, please unselect the camera so that the pictures are NOT printed with the recipe (if preferred).