Sift the icing sugar to remove any lumps.
Sift the flour to add to a lighter and flakier finished product.
Beat the coconut oil well to make sure there are no little lumps of fat remaining.
Do not overbeat the dough once the flour is added.
If you would like a shorter baking time, raise temp to 325 degrees F. and check at 8 minutes and then five minutes. I have not tested this temp out, so buyer beware.