Velveeta Fudge
["1 1/2 lb. Velveeta cheese", "1 1/2 c. butter or margarine", "1/2 c. cocoa", "4 lb. powdered sugar", "1 Tbsp. vanilla", "1 c. nuts (optional)"]
["Melt cheese and butter or margarine in microwave, stirring often.", "Add cocoa, sugar, vanilla and nuts.", "Mix well.", "Pour into greased 9 x 13-inch cake pan."]
["Velveeta cheese", "butter", "cocoa", "powdered sugar", "vanilla", "nuts"]