Easy Brownies
["2 sticks margarine", "2 c. sugar", "1 tsp. vanilla", "1/3 c. cocoa", "4 eggs", "1 1/2 c. flour", "1 tsp. salt", "walnuts (optional)"]
["Melt margarine in microwave.", "Stir well after adding each ingredient.", "Bake in greased 9 x 13-inch pan for 18 to 20 minutes. Do not overbake.", "Frost."]
["margarine", "sugar", "vanilla", "cocoa", "eggs", "flour", "salt", "walnuts"]