Stir melted butter and sugars until butter is absorbed; stir in egg.
Stir in extracts, zests, baking soda, cream of tartar, and spice blend; fold in flour until just incorporated. Cover and refrigerate for two hours or overnight.
Preheat oven to 350ºF. Add Florida Sunshine Sugar to a small bowl. Line a baking sheet with parchment paper and set aside.
Scoop a walnut-sized portion of cookie dough and roll it between palms to form a smooth ball. Roll in Florida Sunshine Sugar to coat and place on the baking sheet. Repeat with remaining dough; position balls two inches apart. Bake 10 to 12 minutes.
