Brownies
["2 sticks butter or margarine", "1/2 c. cocoa", "4 eggs", "2 c. sugar", "1 c. flour", "1/2 c. nuts (optional)"]
["Heat butter and cocoa.", "Do not boil.", "In separate bowl, mix eggs and sugar.", "Add cocoa and butter.", "Add flour and nuts.", "Bake at 350\u00b0 for 30 minutes."]
["butter", "cocoa", "eggs", "sugar", "flour", "nuts"]