After reading Delia's webchat on here a while ago I checked out her website and noted her recommendation of using Lurpak spreadable so picked some up when I was shopping.
Realised today it wasn't in date for much longer and didn't have much ingredients around so opted for the classic Victoria sandwich recipe/video and the result is heavenly.
Honestly, I would serve it to those scary WI judges on Masterchef with confidence.
It has a texture that is lighter than air and the flavour is perfect.
I also followed all the other rules to the letter:room temperature ingredients, sifting flour properly,etc so maybe all those things combined made the difference.
So if, like me, you are a decent baker but have never quite mastered the perfect basic sponge then try it - you'll feel like Bree from Desperate Housewives. 