Grandma Annie Kimmel'S Yellow Cake
["2 3/4 c. flour", "3 1/2 tsp. baking powder", "1/2 tsp. salt", "1/2 c. butter", "1 3/4 c. sugar", "1 tsp. lemon extract or 1 Tbsp. lemon juice", "1 1/2 c. milk", "6 large egg yolks"]
["Sift flour and measure; sift again with baking powder and salt.", "Cream butter, sugar and extract until fluffy.", "Add eggs and beat milk alternately with dry ingredients.", "Mix thoroughly.", "Bake in well-greased tube pan for 1 hour or until pick comes clean in 350\u00b0 oven.", "Keeps very well and is super with fruit, ice cream or as a base for trifle.", "(From Connecticut.)"]
["flour", "baking powder", "salt", "butter", "sugar", "lemon", "milk", "egg yolks"]