Mom's Sugar Cookies

Ingredients

• 1 teaspoon baking soda 
• 1 cup butter 
• 1 teaspoon cream of tartar 
• 3  eggs 
• 4.5 cups flour all-purpose sifted
• 0.3 teaspoon salt 
• 1 teaspoon vanilla extract 
• 2 cups sugar white

Equipment

• baking sheet
• oven
• cookie cutter

Directions

1. Cream butter and sugar; add eggs. Sift dry ingredients 3 times; combine thoroughly with egg mixture.
2. Add vanilla.
3. Roll in waxed paper and store in refrigerator to chill thoroughly.
4. Preheat oven to 375 degrees F (190 degrees C).
5. Roll out dough very thin on well-floured board; cut with cookie cutter.
6. Bake on greased cookie sheets for 6 - 10 minutes.