Method
- Sponge: Preheat oven to 180C. Grease and line a 20cm springform cake tin.
- In a stainless steel bowl, beat eggs and sugar over simmering water until thick. Add cornflour and half the flour. Fold in using a metal spoon. Add melted butter and remaining flour. Combine well.
- Pour batter into the tin. Bake for 25-30 mins or until a skewer comes out clean. Cool for 4 mins, then move to a cooling rack.
- Meringue: Beat egg whites until soft peaks form. Add sugar gradually, continuing to beat until thick and glossy.
- Assembly: Cut a 9cm disc from the sponge. Trim to 1cm height. Let ice cream soften slightly, then place on the sponge. Cover with meringue and toast with a blowtorch.
- Freeze until serving.