Preheat the oven to 220F/425F/Gas 7.
Whisk the flour, baking powder and egg yolks in a bowl. Then add enough milk to make a stiff batter and season, to taste, with salt and freshly ground black pepper.
In a separate bowl, whisk the egg whites until stiff and then fold into the batter.
Add the sweetcorn and fold through the batter mixture.
Onto a baking sheet pour out portions of the sweetcorn batter. Place into the oven and bake for 5-10 minutes, or until puffed up and set.
Meanwhile, in a saucepan, add all of the salsa ingredients except for the coriander. Add a splash of water, bring to the boil, reduce the heat and simmer for five minutes.
Add the coriander and stir through.
Serve the fritters on a warm plate with the salsa beside.