In the bowl of an electric mixer, cream together butter and sugar until fluffy.
Add in vanilla and eggs.
In a seperate bowl, stir together flour, salt, baking powder, bakin soda, and cream of tartar.
Slowly add flour mixture to the butter and sugar until combined.
Roll the dough in to balls, then into the cinnamon and sugar mixture.
Place on a silpat or parchment lined baking sheet. Bake for 10 to 12 minutes or until the egdes are slightly golden at 350 degrees.