2
For the cake, preheat an oven to 170°C/gas mark 3. Beat the eggs with the yoghurt and oil in a bowl. In a separate mixing bowl, stir together the flour, sugar, salt and baking powder, then add the egg mixture and gently fold until combined. Pour the batter into a 18cm cake tin (or smaller, if you prefer a taller cake) and bake for 25 minutes, or until a skewer inserted into the centre comes out clean. Remove from the oven to cool, but leave the oven on