Line and grease a 20cm/8in springform cake tin. Cream together the butter and sugar until pale and fluffy. Beat in the eggs one at a time then add the lemon zest. Mix in the flour and pour the ...

just big enough to fry one cake at a time – the oil should come halfway up the sides, ideally in a small pan so you don’t use too much oil. Put the flour, icing sugar, baking powder ...