Double Chocolate Chip Cookies
["1 1/2 c. butter", "3 c. sugar", "4 eggs", "4 tsp. vanilla", "4 c. flour", "1 1/2 c. cocoa", "2 tsp. soda", "1 tsp. salt", "2 c. chopped nuts", "1 (12 oz.) bag chocolate chips", "1 (12 oz.) bag vanilla or white chocolate chips"]
["Cream butter and sugar.", "Add eggs and vanilla.", "Combine dry ingredients and add to creamed mixture.", "When well mixed, add nuts and chips.", "Bake at 350\u00b0 for 8 to 10 minutes.", "Drop by teaspoonful on ungreased cookie sheet.", "Don't overbake."]
["butter", "sugar", "eggs", "vanilla", "flour", "cocoa", "soda", "salt", "nuts", "chocolate chips", "vanilla"]