Meringue wreath with raspberry and puffed up cranberries

6 egg whites, at room temperature

2 pinches of finely ground sea salt

340g of white caster sugar

2 tsp of cornflour, sieved

2 tsp of white malt vinegar

For the puffed up cranberries:

200g of fresh cranberries

180g of sugar

120 ml of water

¼ tsp of ground sea salt

¼ level tsp of bread soda

To decorate:

300ml of cream, stiffly whipped

200g of raspberries, mashed and passed through a sieve if you wish