|Butter/Margarine||1 Cup (16 tbs), softened|
|Granulated sugar||1 Cup (16 tbs)|
|Firmly packed brown sugar||1 Cup (16 tbs)|
|All purpose flour||2 1⁄2 Cup (40 tbs)|
|Baking soda||1 Teaspoon|
In large bowl of an electric mixer, beat butter, granulated sugar, and brown sugar until creamy; then beat in eggs and vanilla.
In another bowl, stir together flour, baking soda, and salt; gradually add to butter mixture, blending thoroughly.
Divide dough in half and mix one addendum into each portion; or double an addendum and mix it into the entire batch of dough.
Drop dough by rounded teaspoonfuls onto ungreased baking sheets, spacing cookies 2 inches apart.
Bake in a 350Â° oven for 12 to 15 minutes or until just set in center when lightly touched.
Transfer to racks and let cool.