Peanut Butter Fingers
["1/2 c. margarine", "1/2 c. peanut butter", "1/2 tsp. vanilla", "1/4 tsp. salt", "1 egg", "1/2 tsp. soda", "1/2 c. white sugar", "1/2 c. brown sugar", "1 c. flour", "1/2 c. powdered sugar", "1/4 c. peanut butter", "2 to 4 Tbsp. milk"]
["Mix all ingredients and spread on cookies."]
["margarine", "peanut butter", "vanilla", "salt", "egg", "soda", "white sugar", "brown sugar", "flour", "powdered sugar", "peanut butter", "milk"]