In a small bowl whisk togbether flour, baking soda and salt.
In the bowl of electric mixer beat butter, gradully adding both sugars. Beat until light and fluffy, about 2 minutes
Beat in egg and vanilla.
On low setting, beat in flour mixture, cherries, and nuts (if using).
Divide dough into thirds and roll each third into a log about 12 inches in length, wrap in parchment or plastic wrap and refrigerate for 4 hours or up to 5 days. Or, freeze for up to one month.
When ready to bake, preheat oven to 350 degrees and line baking sheets with baking mat or parchment paper.
Slice dought into 1/2 inch slices, arrange on baking sheet leaving an inch or so in between. Bake on centre rack for 7 to 10 minutes, until edges are just golden.
Repeat with remaining dough.
Notes
Store in an airtight container for up to 5 days or freeze prepared cookies for up to a month.