Castella Cheese Cake 古早味芝士蛋糕

1 磅蛋糕模 1 lb loaf tin 22 x 11 x 6cm  

(A)
• 35g butter 牛油
• 35g milk 牛奶
• 10g granulated sugar 糖
• 2 large, egg yolks, cold 蛋黄 (冷)
• 1/2 tsp vanilla extract 香草精
• 40g cake flour 低筋面粉
• a pinch of sea salt 一小撮海盐

(B)
• 2 large, egg whites, cold 蛋白 (冷)
• 1/2 tsp distilled vinegar 醋
• 40g granulated sugar 糖

(C)
• 2 pieces, cheese slices 奶酪片
• grated parmigiano reggiano / parmesan cheese 帕馬森芝士