Chewy Chocolate Cookies 
Makes 4 dozen

1 1/4 cups butter or margarine, softened
2 cups white sugar
2 eggs
2 teaspoons vanilla extract
2 cups all-purpose flour
3/4 cup cocoa
1 teaspoon baking soda
1/2 teaspoon salt
2 cups semisweet chocolate chips
                   
1. Preheat oven to 350 degrees F. 
2. In large mixer bowl, cream butter and sugar until light and
   fluffy. Add eggs and vanilla; beat well. 
3. Sift together flour, cocoa, baking soda, and salt; gradually
   blend into creamed mixture, using low speed on mixer. 
4. Stir in chocolate chips with wooden spoon. Drop by
   teaspoonfuls onto ungreased cookie sheets. 
5. Bake 8-9 mins.                   
6. Cool slightly on cookie sheet; remove from sheet onto wire
   rack to cool completely.