Cream the butter until smooth and then mix in the sugar until fully combined.
Add the remaining ingredients except the flour which will be added add slowly until everything is just combined. The mixture will look a little "crumbly"; this is ok.
On a wax paper covered surface, form two logs with your dough, around 1 ¼ inches thick. Wrap them in wax paper.
Chill the dough logs in the refrigerator for at least an hour.
Preheat the oven to 350 degrees.
Unwrap the dough logs and slice to a desired thickness (I did around ⅓ of an inch) and place the slices on a baking pan lined with parchment or silicone baking mat.
Bake for 12 to 14 minutes or until they are just barely brown along the edges.
If you want- dip these into melted chocolate (you can melt in the microwave stirring every 30 seconds or with a double boiler over low heat stirring often).
Notes
This dough logs freeze very well, as do the finished cookies. They'll last in the freezer for up to 6 months.