Use a a cookie sheet flat baking sheet with no sides if possible this will allow the heat to circulate around the cookie more evenly. More even heating will help create those crisp edges and perfectly soft middles of these cookies.
If you want a more sparkly appearance switch the granulated sugar for sanding sugar. The larger granules of the sanding sugar catch the light and give the cookies a more magical shine.
Nutritional information is estimated. Information will vary based on ingredient choices and serving sizes.