In a large bowl, beat butter and brown sugar until well combined, about 2-3 minutes.
Beat in egg and vanilla.
In a medium bowl, whisk together flour, salt, baking soda and cinnamon.
Add dry ingredients to butter mixture until combined.
Add remaining ingredients until well combined. Chill in refrigerator for 1 hour.
Preheat oven to 350 degrees.
Line a baking sheet with parchment paper.
Place dough by rounded tablespoonfuls onto a parchment lined baking sheet, two inches apart. Flatten dough slightly with the palm of your hand.
Bake for 8 -10 minutes, rotating tray halfway through, until edges are set and cookies are golden.
Cool on baking sheet for 5 minutes, then remove to wire rack to completely cool.