Call it the flavor and texture of history.
This iconic indented design is likely the product ofearly 20th century cookbookswhich doubled as home economics and agricultural guides.
Early American Cookbook Recipes
The history of early American cookie recipes starts with the first printed cookbooks.

Credit:Jen Causey; Food Stylist: Emily Nabor Hall; Prop Stylist: Christina Daley
This often meant pressing on the dough with a hand, a spatula, oryesa fork.
Most popular recipes hence provide the same directive.
And it makes sense that the aesthetics of the design came along with it, because the design stuck.

Credit:Jen Causey; Food Stylist: Emily Nabor Hall; Prop Stylist: Christina Daley
While this might not be the original reason for the crisscross, it’s certainly an added plus!

Credit:Jen Causey; Food Stylist: Emily Nabor Hall; Prop Stylist: Christina Daley