Allow ingredients like butter and eggs to come to room temperature before using

Measure ingredients carefully; when baking ,exact amounts make a difference

Do not overmix cookie dough as it will result in a tough product

Use bright shiny aluminum cookie sheets, rather then dark ones to prevent over-browning

Bake cookies on the middle rack in the oven

Cookies will continue to bake after they are removed from the oven, so be sure to transfer carefully to a wire rack to cool