Use more dark brown sugar than granulated white sugar to increase moisture and achieve that coveted chewy center, as brown sugar contains molasses which adds both humidity and depth of flavor.

Lightly toast the unsweetened flaked coconut in a dry skillet for 2-3 minutes before adding to the dough to intensify its flavor and prevent it from absorbing excess moisture during baking.

Remove cookies from the oven when the edges are golden but the centers still look slightly underdone—they'll continue cooking on the hot baking sheet and set to perfectly chewy rather than hard.

Refrigerate the cookie dough for at least 30 minutes before baking to prevent excessive spreading and create thicker, chewier cookies with crispy edges.

Ensure butter is softened to room temperature (not melted) when creaming with sugars—this incorporates air for lift while maintaining the dense, chewy structure you want in these cookies.