The forums are in a bit of atwitter over this flavour, and there are lots of questions as to why it's not available in the 50g bar size, while the other flavours, Jelly Popping Candy and Jelly Crunchie Bits, are. I do have the answer! Accordingly to my rep, the Peanut Toffee Cookie flavour is a supermarket-exclusive variety. That means you won't find it in your corner shop or independent supermarkets (unless they are purchasing it from the majors).
Onto the chocolate. This flavour, Peanut Toffee Cookie (damn, Cadbury, it's biscuit! We're not America yet) is described on the packet as 'peanut, toffee and cookie pieces covered in delicious Dairy Milk milk chocolate. Imagery on the front leads you to believe the block will be filled with the peanut and biscuit pieces. Of course, upon opening the block and flipping it over, you'll be sorely disappointed.
Nine biscuit pieces. Count them! As you can tell from my block that has been snapped into many pieces, I struggled to find a good cross-section that showed the delights inside. I feel kind of insulted, really.
Luckily, aside from the peanut and biscuit cookie pieces, there are also flecks of toffee distributed more evenly throughout the chocolate. They are small and nondescript, and don't really show in the photos, but you'll feel the crunch every time you take a bite.
Now, I'm not a big fan of nuts in chocolate, but if you're a fan of honey-roasted peanuts, then this block is for you. The toffee-infused chocolate is incredible when paired with the peanut pieces (if you can find one). It's quite a strong flavour, almost overriding the standard super-sweet Cadbury Dairy Milk chocolate. I am pleased there is a lot of toffee flavour, as it adds another dimension to the block. The peanut and toffee combination is quite successful.
Unfortunately I can't say the same for the inclusion of the cookie pieces. The pieces themselves are round, like the centre of a Malteser, but are disappointingly bland. Though they add a little texture to the mouth feel, the block doesn't really benefit from their inclusion, and would be much better without them.
The Cadbury Marvellous Creations Peanut Toffee Cookie block contains milk, wheat, peanut and soy, and may contain traces of tree nuts and egg.
(Oh, and that's the other thing. These super blocks apparently contain 12 servings.