Found this on ourbestbites.com and decided to make it since I have an abundance of apple pie slices in the freezer. This is much easier than another recipe. No need to roll out a top crust. I did add about 1/2 c. of crushed cornflakes to the top of the crust before adding apples.
2 c. flour
1/2 c. sugar
1/2 tsp. baking powder
1/2 tsp. salt
1 c. real butter, softened (no substitutions!)
1 egg, beaten
1/2 c. white sugar
1/4 c. flour
1 tsp. cinnamon
4 c. (about 3 medium) sliced, peeled baking apples (I've used Granny Smith in the past, although this time around I used Gala and they were fabulous)
2 c. powdered sugar
About 3 Tbsp. milk (whole milk is best)
1 tsp. almond extract
To prepare crust, mix flour, sugar, salt, and baking powder in a medium bowl. Cut in butter with a pastry blender or two knives until you have pea-sized crumbles. Gently mix in beaten egg.
Spray a 9x13 baking dish with non-stick cooking spray. Gently pat about 2/3 of the crumb mixture onto the bottom of the dish. Preheat oven to 350 and set aside.
When finished, allow to cool completely.
To prepare glaze, whisk together powdered sugar, almond extract, and enough milk to achieve desired consistency.
Place glaze in a Ziploc bag and cut off a very small portion of one of the corners. (Or just use a fork(Drizzle glaze over cooled pastry and allow to harden (you can place it in the freezer to hurry things along). Cut into bars and serve.