Unbelievable Fudge
["1 c. butter", "8 oz. Velveeta", "1 1/2 tsp. vanilla", "2 lb. powdered sugar", "1/2 c. baking cocoa", "chopped pecans"]
["Melt butter and cheese in pan over low heat.", "Stir constantly. Mix in vanilla.", "Pour over mixture of powdered sugar and cocoa in bowl.", "Mix quickly until well blended.", "Spread in a 9 x 13-inch pan.", "Pat pecans over top."]
["butter", "Velveeta", "vanilla", "powdered sugar", "baking cocoa", "pecans"]