Olde English Chess Pie
["pastry for 9-inch pie", "1/2 c. dried currants", "3/4 c. sugar", "3 Tbsp. flour", "1/2 tsp. salt", "1/2 tsp. mace", "2 tsp. vanilla", "1 c. sour cream", "3/4 c. buttermilk", "3 egg yolks", "3 egg whites"]
["Soak currants in hot water until plump.", "Drain.", "Line a 9-inch pie pan with pastry.", "Spread currants evenly over pastry.", "Beat together sugar, flour, salt, mace, vanilla, sour cream, buttermilk and egg yolks.", "Fold in stiffly beaten egg whites.", "Pour into pie pan and bake at 400\u00b0 for 10 minutes, then at 350\u00b0 for an additional 25 minutes."]
["pastry", "currants", "sugar", "flour", "salt", "mace", "vanilla", "sour cream", "buttermilk", "egg yolks", "egg whites"]