Cocoa Brownies
["1 1/2 c. flour", "2 c. sugar", "1/2 c. cocoa", "1 c. margarine (room temperature)", "4 eggs", "1 tsp. vanilla", "1 c. nuts (optional)", "1/4 tsp. salt"]
["Grease 16 x 8 x 2-inch pan.", "Start oven 10 minutes before baking; set at 350\u00b0.", "Sift flour, measure, re-sift 3 times with cocoa and sugar.", "In a large mixing bowl, add butter, eggs and vanilla.", "Blend in flour mixture.", "Beat 2 minutes on medium speed. Stir in nuts.", "Bake 20 to 22 minutes or until barely done."]
["flour", "sugar", "cocoa", "margarine", "eggs", "vanilla", "nuts", "salt"]