Let eggs, butter, and milk sit out for 30 minutes before mixing to ensure even distribution and create a more cohesive dough that yields softer, chewier cookies.

Mix ingredients just until combined after adding the cake mix—overmixing develops gluten and creates tough, cake-like cookies instead of tender, chewy ones.

Refrigerate the dough for 15-20 minutes to prevent spreading and help the cookies maintain their shape while developing deeper butter and pecan flavors during baking.

Remove cookies from the oven when the edges are lightly golden but the centers still look slightly underdone—they'll continue cooking on the pan and stay perfectly soft and chewy.

Lightly toast any additional pecans for 3-5 minutes before adding to the batter to intensify their nutty flavor and add premium depth to the finished cookies.