In a large bowl cream together the butter, sugar, and brown sugar. Add in the vanilla, maple syrup, and egg and mix well to combine.

In a medium bowl combine the flour, baking soda, cinnamon, and cream of tartar.

Add the dry ingredients to the wet ingredients and mix until a dough forms.

Chill the dough for at least 1 hour or up to 24 hours.

Preheat the oven to 375 degrees.

In a small bowl combine the sugar and cinnamon.

Roll the dough into 1 1/2 inch balls. Roll the balls in the cinnamon sugar mixture and place on a baking sheet 2 inches apart.

Bake for 8-10 minutes or until the tops have cracked and the cookies look set.

Remove from oven and cool for 2 minutes before transferring to a wire rack to cool completely.