Break the eggs into a bowl and add the caster sugar, flour, baking powder, butter, poppy seeds and the juice and zest of one lemon, mix well to a soft and light consistency.
Divide equally between two greased and lined 20cm/8" sandwich cake tins and bake in the centre of the oven for 25 minutes or until golden brown and springy to the touch.
Leave to cool in the tins for 5 minutes and then carefully remove onto a wire tray to cool.
When the cakes are completely cold, assemble by taking one cake and turn it upside down on a plate, cover the cake with a liberal spreading of Hawkshead Relish Lemon Curd.
Place the second cake on top and mix together the Icing sugar with the lemon juice from the second lemon, mix to form a firm icing and spread on the top and sprinkle with the zest of the second lemon and a few Poppy Seeds.