食譜 ingredient：

軟化的黃油 soften butter 230g 全蛋液（室溫）Eggs ( Room temperature ) 6顆 低筋麵粉 self-raising flour 220g 砂糖 sugar 150g 吉士粉 custard powder 10g 奶粉milk powder 10g 食用小蘇打 baking soda 2g