My first attempt was pretty good, although the frosting topping did not work very well, as the recipe I used was not very clear, so basically there was no crunch and very very tart at the top of the cake. Every bite of this Lemon Layer Cake with Lemon Curd and Lemon Buttercream bursts with lemon flavor. Cream butter and caster sugar together until light and fluffy; stir in eggs, flour, lemon curd and 1/2 the lemon rind. Cream together the butter, icing sugar and vanilla in a bowl until light and fluffy. I thought I would make a lemon drizzle cake so looked for some good recipes and had a go. My Lemon Drizzle Cake. A wonderfully moist lemon cake is layered with velvety smooth lemon curd and frosted with fresh lemon buttercream. Pour mixture into prepared tin and bake in the preheated oven until a skewer inserted into the centre of the cake comes out clean, 30 to 45 minutes.