Butterscotch Refrigerator Cookies (Ann Stewart)

Ingredients:

½ cup butter, softened

2 cups dark brown sugar

2 eggs, beaten

3 ½ cups flour

¼ teaspoon salt

½ teaspoon salt

½ teaspoon baking soda

½ teaspoon cream of tartar

½ teaspoon vanilla

Directions:

Cream butter, sugar, eggs and vanilla until very light and fluffy.  Sift together all dry ingredients and gradually mix into butter mixture.  This dough is stiff!  Divide dough between 2 pieces waxed paper or plastic wrap and form dough into 2 logs and wrap tightly.  Chill for at least on hour. Heat oven to 375 degrees.  Take out one roll at a time and slice very thin. Place cookies on an ungreased baking sheet.  Bake cookies for about 9 minutes.  Remove cookies at once to cool and then store cookies in an air tight container.