Aunt Jennie'S Butter Cookies
["1 c. butter", "1 c. sugar", "1 egg", "1 Tbsp. milk", "1 tsp. vanilla", "1 tsp. baking powder", "1/4 tsp. salt", "2 1/4 c. unsifted flour"]
["In large bowl, cream butter until light.", "Gradually beat in sugar.", "Beat in egg, milk and vanilla.", "Add baking powder and salt, mixing well.", "Gradually blend in flour, mixing thoroughly."]
["butter", "sugar", "egg", "milk", "vanilla", "baking powder", "salt", "flour"]