In a medium bowl, mix the flour, cinnamon, cornstarch, salt, and baking powder. Set aside.
3 cups All-purpose flour, 1 tsp Baking powder, 1 tsp Ground cinnamon, 1 tsp Cornstarch, 1 tsp Salt
In a large bowl, mix the melted butter (it needs to be cooled to room temperature before using), brown sugar, sugar, vanilla, and eggs. Whisk until combined and smooth.
1 cup Unsalted butter, 1 cup Brown sugar, 1/2 cup White granulated sugar, 1 tsp Pure vanilla extract, 2 Large eggs
Add in the dry ingredients and use a rubber spatula to mix until just combined.
Let the cookie dough rest for 10 minutes. Preheat the oven to 350°F. Line two cookie sheets with parchment paper.
Use a large cookie scoop and scoop 6 cookie dough balls per cookie sheet.
Bake for 13-15 minutes. Press 1/4 cup measuring cup into the hot cookies to create the hole. Let it sit on the hot pan for 5 minutes.
Cool the cookies completely on a cooling rack.
Brush the cookies with melted butter using a pastry brush (do 1 cookie at a time), roll the cookie in cinnamon sugar. Only worry about the outside of the cookie and not inside the hole.
2 TBSP Unsalted butter, 1/2 cup White granulated sugar, 1 tsp Ground cinnamon
Top each hole with apple pie filling. Then, drizzle salted caramel on top.