Brownies
["3 to 4 sq. Baker's chocolate", "2 sticks butter", "2 c. sugar", "1 c. flour", "4 eggs", "pinch of salt", "walnuts (optional)"]
["Melt first 3 ingredients.", "Remove from heat; add flour and stir.", "Add 1 egg at a time, stirring thoroughly.", "Add salt and walnuts.", "Bake at 325\u00b0 for 30 to 35 minutes."]
["chocolate", "butter", "sugar", "flour", "eggs", "salt", "walnuts"]