Whole Wheat Snickerdoodles

1/2 cup butter
3/4 cup packed brown sugar
1 egg
1 teaspoon vanilla
1 1/2 cups whole wheat flour
1/2 teaspoon baking soda
1/2 teaspoon cream of tartar
1/4 teaspoon of salt

Cookie coating:
2 tablespoons sugar (I did 1 T of cane sugar and 1 T of white sugar)
1/2 teaspoon ground cinnamon

1-Turn oven to 375. In a small mixer bowl beat butter with electric mixer on medium speed till softened. Add brown sugar and beat till fluffy.
2- Add egg and vanilla. Beat well.
3- In a medium mixing bowl stir together whole wheat flour, baking soda, cream of tartar and salt. With mixer on low speed gradually add flour mixture to butter mixture, beating til well mixed.
4- In small bowl stir together sugar and cinnamon. Shape the dough into 1-inch balls. Roll the balls in the sugar-cinnamon mix. Place about 2 inches apart on un-greased cookie sheets. Flatten slightly with the bottom of a drinking glass.
5- Bake for 8-10 minutes or till edges are firm. Use a spatula to lift cookies onto a cooling rack.