Place flour in a mixing bowl and make a well in the centre. Use a fork to whisk eggs and milk in a jug then pour gradually into the flour. Add the yogurt and stir gently to combine. Cut the corn kernels off the cob and add to the milk and flour mixture along with the chives and half the feta. Add a pinch of salt and pepper and mix through. Don’t over mix or the fritters may become tough, not light and fluffy.