prepared failsafe crust, see Failsafe Cookbook
1 395g can of condensed milk
1/2 cup hot water combined with 1.5 tsp citric acid, allow to cool
3 eggs, separated
1/4 cup caster sugar

Blend together condensed milk and citric water. Add lightly beaten egg yolks and combine well. Pour evenly into chilled crust. Beat egg whites until stiff, gradually adding caster sugar. Spoon meringue on top of filling and bake in a preheated 180ÂșC for 10 minutes until golden.