Reese'S Chewy Chocolate Cookies
["1 1/4 c. butter or margarine, softened", "2 c. sugar", "2 eggs", "2 tsp. vanilla extract", "2 c. all-purpose flour", "3/4 c. Hershey's cocoa", "1 tsp. baking soda", "1/2 tsp. salt", "1 2/3 c. (10 oz. pkg.) Reese's peanut butter chips"]
["Heat oven to 350\u00b0.", "In a large bowl, beat the butter and sugar until light and fluffy.", "Add eggs and vanilla; beat well.", "Stir together the flour, cocoa, baking soda and salt.", "Gradually blend into butter mixture.", "Stir in chips.", "Drop by teaspoonfuls onto ungreased cookie sheet.", "Bake 8 to 9 minutes.", "(Do not overbake. Cookies will be soft.", "They will puff while baking and flatten while cooling.) Let cool and then remove from cookie sheet. Yields about 4 1/2 dozen cookies."]
["butter", "sugar", "eggs", "vanilla extract", "flour", "cocoa", "baking soda", "salt", "butter chips"]