Leave to stand for 5 minutes before serving. Dust with icing sugar to serve. Hand round a jug of double cream or a bowl of thick fresh yoghurt for everyone to help themselves.

Mix briefly until smooth before stirring in the yoghurt ... If it is too thin, add a little more icing sugar. Pour the glaze on the cake letting it drip down the sides. Let the glaze set ...

In the meantime, beat the butter, icing sugar and natural yoghurt until smooth. Add the rest of the lemon zest. Take the cake from the oven and let it cool briefly in the tin. While it is still ...

Add the yoghurt, cordial, and lemon zest ... runny enough to pour but not so liquid that it does not coat the cake. Add more icing sugar or liquid as needed. Pour it over the cooled cake and ...