I have been laughing my socks off about these and my son and I even came up with a spoof M&S advert:
Butter, roasted with a butter centre and rich butter sauce;
Butter, coated in butter crumbs and deep fried in best butter;
Butter sponge, with a liquid butter centre and double butter sauce.
This isn't just food, it's heartattack-inducing, butter, butter. butter
It reminds me of the spam sketch in Monty Python.
I agree they are ridiculously over-the-top, and Rory Bremner did a great spoof of them called 'S and M - this is not just food; this is pornography'. However, they have worked brilliantly. M and S's food sales have soared since the ads were introduced. Loads of copycat ads have sprung up; the Haagen Dazs ones Kev mentioned, plus the current Aldi and Morrisons ads.
The woman speaking is none other than Dervla Kirwan.
She was also the original Phoebe in Goodnight Sweetheart.
Ah, now I know where I've heard the name. She was much better than the one who replaced her.
Or: