Lightly grease a 13 x 18-inch baking pan.
Cut a piece of parchment paper into a 12 x 17-inch rectangle. Roll 1/2 of the refrigerated dough over the parchment paper into a rectangle (the dough will be quite thin).
Transfer the dough to the prepared baking pan. This is easily done by flipping it over into the pan and gently peeling the parchment off, then smoothing the dough where it needs it. Prepare Pastry Dough and refrigerate for approximately 30 minutes.
In a small bowl, combine together the sugar, cornstarch, salt, and cinnamon; set aside.
Spread the apples over the chilled dough leaving a small border of dough, and sprinkle with the prepared sugar mixture.
Roll out the remaining dough and place it over the top of the apples. Pinch the edges together. Cut steam vents in the top.
Cover with plastic wrap lightly coated with non-stick spray, and let rise in a cool place for about 1 hour.
After 30 minutes, preheat the oven to 350F.
Bake the apple pastry for approximately 25 to 30 minutes, until golden brown. Remove from the oven and cool on a rack for 20 minutes.
Prepare the Glaze and drizzle over the cooled bars; let cool completely.
Cut either into 3 -inch squares if you want to serve it as dessert (topped with ice cream, of course!), or 2 x 3-inch bars for cookies. Refrigerate any leftovers.
For added color and flavor, spread a layer of dried cranberries atop the apples before adding the top crust.
In a small bowl, beat the milk and eggs together; set aside. In a medium-size bowl, combine the instant yeast, flour, and salt. Using a pastry blender or two knives, cut in the butter until the mixture resembles coarse crumbs. Add the egg/milk mixture, stirring until a soft dough forms. Divide the dough in half and chill for approximately 30 minutes.
In a small bowl, mix together the sugar, milk, and vanilla extract until smooth.
Frosted Apple Squares Recipe: https://whatscookingamerica.net/cookie/frostedapplesquares.htm