Ingredients

   * 1/2 cup sour cream
   * 1/2 teaspoon baking soda
   * 2 cups flour
   * 1/2 cup sugar
   * 1 teaspoon baking powder
   * 1/8 teaspoon cream of tartar
   * 1/2 teaspoon salt
   * 1/2 cup butter
   * 1 egg
   * 2 teaspoons cinnamon
   * additional cinnamon sugar

Directions

  1.
     1
     Preheat oven to 350º.
  2.
     2
     Spray baking sheet with cooking spray.
  3.
     3
     Combine sour cream and baking soda in a small bowl. Set aside.
  4.
     4
     Combine flour, sugar, baking powder, cream of tartar and salt in another bowl.
  5.
     5
     Cut in butter until mixture resembles fine breadcrumbs.
  6.
     6
     Combine egg with sour cream mixture. Add cinnamon.
  7.
     7
     Gently stir into flour mixture until moisted.
  8.
     8
     Place on baking sheet and pat into a 3/4 inch thick circle.
  9.
     9
     Cut into 8 wedge shaped pieces. Move slightly so they are not touching.
 10.
     10
     Dust with cinnamon-sugar.
 11.
     11
     Bake 15 to 20 minutes or until golden brown.

http://www.recipezaar.com/Snickerdoodle-Scones-124807