Use applesauce as your primary wet ingredient but reduce it slightly (use 3/4 cup instead of a full cup) to prevent cookies from spreading too thin, keeping them chewy and cookie-textured rather than cakey.

Strain excess liquid from the canned apple pie filling through a fine mesh strainer before folding into the batter to prevent soggy cookies and ensure the filling stays contained during baking.

Refrigerate the batter for 15-20 minutes before portioning; this prevents spreading and helps the cookies bake evenly with distinct edges while keeping the centers soft and chewy.

Apply a thin first layer of icing after cookies cool completely, then add a second coat once the first sets; this creates an elegant finish and prevents icing from soaking into the warm cookie.

Add an extra 1/4 teaspoon of vanilla extract beyond the cake mix's included vanilla to deepen the flavor profile and complement the apple and cinnamon notes in the filling.