Preheat oven to 350F (175C).
In large mixer bowl, cream butter and sugar until light and fluffy.
Add eggs and vanilla; beat well. Sift together flour, cocoa, baking soda, and salt;
gradually blend into creamed mixture. Stir in chocolate chips.
Drop by spoonfuls onto ungreased cookie sheets. Bake 8 to 9 minutes.
DO NOT over bake! Cookies will be soft. Cool slightly on cookie sheet;
transfer from sheet onto wire rack to cool completely.
Band Members:
1 1/4 cups butter or margarine, softened, 2 cups granulated sugar, 2 large eggs,
2 teaspoons vanilla extract, 2 cups all-purpose flour, 3/4 cup unsweetened baking cocoa, 1 teaspoon
baking soda, 1/2 teaspoon salt, 2 cups chocolate chips