This was really, really good. The texture was fabulous - light bust very moist. I subtituted the lemon extract with about 2 tbsp lemon juice and the rind of 1/2 a lemon, and the shortening with unsalted butter. Oh, and I used skim milk. : )
I'm giving this cake four stars because I felt what really made it amazing (even my father went back for seconds! unheard of!) was the lemon glaze I topped it with (just mix lemon juice, confectioners sugar, and lemon rind) and the lemon ricotta creme I served on the side. The combination was oustanding. For the ricotta creme, I just threw about a cup of ricotta (part skim), tbsp lemon juice, lemon rind from one lemon, 1 tbsp half and half, and maybe 2 tbsp sugar? because you can throw it all in the blender, you can really just adjust to your liking.
Wonderful recipe. This is probably the new family favorite!