The Double Decker is one beast of a bar.

For starters it’s the size of a small, slender paving slab. I don’t have the wrapper to hand at the moment, as I ate this a couple of hours ago, but I’ll wager it weighs about 2 stone.
It’s also quite packed with filling too; the top is a layer of nougat and the bottom is a more easy to eat chocolate and biscuit combo.
I’d advise you don’t keep this behemoth in the fridge, as cooling affects the nougat in cement-like ways.
I’d also advise not keeping it in a too warm state, as melted nougat can become like soup.
Choc Rating : 8 / 10
