Arctic roll

Instructions

1. Preheat the oven to 200 °C and line a 25 x 35 cm rimmed baking tray with buttered baking paper.
2. Whisk the eggs and sugar over a warm water bath until pale and frothy, then continue off the heat until cool.
3. Gently fold in the sifted flour with the baking powder and salt using a spatula, without deflating the foam.
4. Spread the batter on the tray and bake for 8 to 10 minutes, until the top springs back.
5. Turn out straight away onto a floured tea towel, peel off the paper and roll the warm sponge up in the towel, then let it cool.
6. Unroll the sponge, spread the jam, then the slightly softened ice cream in an even layer.
7. Roll up again without the towel, wrap in cling film and return to the freezer for at least 4 hours.
8. Dust with icing sugar just before serving and slice into thick pieces with a knife dipped in hot water.