Apple squares are similar to apple pie, with a slightly different consistency and texture. Apples are one of the easiest and most savory fruits to incorporate into a dessert dish, as they can be crisp, sweet and juicy. With some simple baking materials and equipment, along with fresh apples, you can make about three dozen apple squares in no time.
Remove pastry dough from the refrigerator a half hour before handling so it is not too firm. Grease the baking pan.
Mix the sugar, cornstarch, salt, and cinnamon in a small bowl and set aside. Roll out half of the pastry dough on wax paper into a rectangle shape that will fit the bottom of the baking dish.
Flip the wax paper with the dough lightly sticking to it over the baking dish, and gently pull it off to drop into the baking dish. Arrange the edges so all areas are covered.
Lay out the the sliced apples on the dough, leaving a dough border at the dish edges of about 1/2 inch. Arrange the apples however you wish, but keep them close together to create a uniform layer of apples. Sprinkle all of the sugar mixture from the bowl generously over the apples.
Roll out the second half of the dough and gently lay it over the top of the apples and sugar layer. Pinch the top sides of the dough to the bottom sides, using fingers wet from water if necessary. Gently slice steam vents in the top layer of dough.
Cover the dish with plastic wrap. Let rise in a cool dry place for about 1 hour, preheating the oven to 350 degrees F after 30 minutes.
Bake the apple squares for about 30 minutes or until the top pastry is golden brown. Remove from oven and cool for at least 15 minutes.
Mix up the glaze by combining the sugar, cream and vanilla in a bowl until thick and creamy. Drizzle it over the apple dish and let cool for about a half hour. Cut into squares of desired size.