• Preheat your oven to 350°F and prepare an 8x8 baking dish by coating it with cooking spray.

For the Bars:

• In a large mixing bowl, combine the cookie mix (reserve the cinnamon mixture), beaten egg, and softened butter until a dough is achieved.
• Press approximately two-thirds of the dough evenly into the base of the prepared dish, leaving the remainder for topping.
• Layer the apple pie filling over the bottom crust made from the dough.
• Dollop the remaining one-third of the dough over the apple filling in small spoonfuls.
• Sprinkle the reserved cinnamon sugar mixture on top of all the layers.
• Bake in your preheated oven for about 50 to 55 minutes, until the top turns a lovely golden color.
• Allow the bars to cool thoroughly. While cooling, mix the glaze in a small bowl, gradually adding milk until reaching the desired thickness.
• Drizzle the glaze over the cooled bars once they have completely cooled.
• Cut into squares; this recipe typically yields 9 bars.