Irresistible apple crumble meets buttery shortbread in these Apple Pie Bars. A layer of sweet cinnamon glaze on top makes these one of my favorite fall treats of all time. You're going to love these bars!
In a large mixing bowl, cream together the butter and powdered sugar. Add 2 cup flour, salt and vanilla until combined. Press into a 13×9 baking dish.
In a mixing bowl, using your hands, combine brown sugar, 2Tbsp flour, 2 Tbsp butter, cinnamon and oats. Mix until coarse crumbles. Add diced apples (you want to make sure your apples are diced very very small. Sprinkle mixture over top of crust. Bake for about 25 minutes (crust may appear to be under cooked, that’s okay).
Cool on counter, then move to refrigerator for at least 2 hours until chilled.
Cut bars into squares (or triangles). In a small bowl, whisk the glaze ingredients together until smooth. Drizzle over cut bars. Glaze will harden slightly in fridge. Enjoy!
Notes
I prefer using from granny smith or pink lady apples. Peel the apples completely and dice.
I recommend dicing your apples into VERY small pieces. The smaller pieces pick up more of that delicious brown sugar crumble and will stay on the shortbread better than larger chunks.
The shortbread crust will still look a little soft or under baked when you take it out of the oven. It will harden as the crust cools!
Keep bars covered loosely in refrigerator for up to 5 days.