Chocolate, peanut butter and caramel baked Alaskas

Method

1. Line a baking tray with non-stick baking paper (or use 2 smaller trays so they fit in the freezer). Scoop out 4 scoops of ice cream. Put on the lined tray(s), then freeze again until solid (about 1 hour).
2. Cut the cake into 4 even 2cm slices and trim the corners to make rough circles slightly larger than the ice cream scoops. Spread with the peanut butter and a dollop of the caramel sauce. Put a ball of ice cream on top of each piece of cake, then freeze until needed.
3. To serve, heat the oven to 220°C/200°C fan/gas 7. When the oven is ready, put the egg whites and cream of tartar in a large clean bowl and whisk using an electric hand mixer until stiff peaks form. Add the sugar 1-2 tablespoons at a time, whisking back to stiff peaks between each addition.
4. Once all the sugar is incorporated and the meringue is shiny and glossy, take the ice cream-topped sponge bases out of the freezer and quickly cover with meringue to the bottom of the bases, leaving no gaps. Bake for 10 minutes until the meringue has a golden brown tinge and is set to the touch. Serve immediately.