Whose snickerdoodles? There are steam-dozen recipes.

SNICKERDOODLES 1
(Hagerstown, MD)

1 1/2 cups sugar
1 cup butter
2 eggs
2 3/4 cups flour
2 teaspoons cream of tartar
1 teaspoon baking soda
1/2 teaspoon salt
2 tablespoons sugar
2 teaspoons cinnamon

Mix sugar, shortening and eggs. Stir in flour, cream of tartar, and baking soda. Chill dough. Roll dough into balls the size of walnuts. Combine 2 tbsp sugar and cinnamon; roll cookies in this mixture.
Bake 375 F. for 8-10 minutes. Cool on wire racks.
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SNICKERDOODLES 2
(Basic, Joy of Cooking)

3 eggs
1 cup shortening
1 1/2 cup sugar
2 3/4 cup flour
2 teaspoons cream of tartar
1 teaspoon baking soda
1 1/2 teaspoon salt

Mix eggs, shortening and sugar together until slightly lumpy.
Mix the rest of the ingredients together in a separate bowl.
Mix the dry mixture with the wet one.
Wrap the dough and refrigerate for about one hour.
Roll dough into balls.
Sprinkle the cookies with cinnamon sugar and set on cookie sheets. Bake at 350 F. for about 8 minutes.

Recipe 2 taken from internet (Wackipedia); my "Joy of Cooking" is too old to contain the recipe.