Peel and dice apples into even pieces. Place a cast-iron skillet over medium heat and add butter. Once butter has melted, add apples and cook for 5 minutes. Add brown sugar and spices and stir to combine.

Stir cornstarch and water together in a measuring cup. Pour over apple mixture in skillet. Stir to combine. Cook for another 3-4 minutes, or until mixture has thickened and turned gooey. Remove from heat.

Preheat oven to 350 degrees. Prepare a baking sheet with parchment paper. Roll out dough sheet onto prepared baking sheet. Brush dough with egg wash (made with 1 large egg and 1 teaspoon of water). Slice dough into strips and separate them about an inch apart.

Bake dough strips in preheated oven for 14-16 minutes or until golden brown on top. Remove from oven. Brush tops with melted butter. Combine sugar and cinnamon together and sprinkle over melted butter. Set aside to let pie crust cool and let butter set.

Once cooled, break pie crust into pieces. Now they're ready to use in the sundae!

Scoop ice cream into dish (no more than 1 cup). Add caramelized cinnamon apples, a sprinkle of pie crust chips, and a few drizzles of caramel sauce. Finish with whipped cream and a dash of cinnamon. Makes 4 sundaes.