Cookies / Galletas

1/2 cup margarine
1/2 teaspoon vanilla
2/3 cup sifted dark brown sugar, 
firmly packed
1 egg, unbeaten
1 cup sifted all-purpose flour
1/8 teaspoon cream of tartar
1/2 cup chopped pecans

Let margarine soften in mixing bowl.
Add vanilla, brown sugar and egg;
beat until smooth.
Sift flour with cream of tartar;
add to first mixture with nuts;
mix well.
Measure out level teaspoon of dough
on greased baking sheets.
Bake in slow oven
(325 degrees Fahrenheit)
12-15 minutes.
Remove while hot.