Place the egg and flour in a bowl and mix together. Add th milk add whisk to make a thick pancake batter. Season with salt and freshly ground black pepper and add the sweetcorn, mixing throughly.
Heat the butter in a frying pan on a medium to high heat. Carefully spoon four dollops of the sweetcorn mixture into the frying pan.
Fry the fritters for three minutes on each side, or until golden on each side.
Place the yoghurt and chilli flakes into a clean bowl and stir through.
To serve, place the fritters onto a serving plate and spoon a dollop of the yoghurt mixture on the side of the plate.