Easy Peanut Butter Cookies
["1 egg", "3/4 c. sugar", "1 c. peanut butter", "1 tsp. vanilla"]
["Beat egg until light.", "Add sugar and beat until fluffy.", "Add peanut butter and vanilla.", "Mix well and roll in balls.", "Place on greased cookie sheet.", "Press down with a fork.", "Bake at 350\u00b0 for about 10 minutes until lightly brown."]
["egg", "sugar", "peanut butter", "vanilla"]