Being a huge fan of both mint and chocolate, especially when they’re combined, I couldn’t resist giving the Grasshopper Pie from Nigella Lawson’s Kitchen a try. I shouldn’t really admit that crème de menthe is a permanent fixture in my kitchen, but I have a little soft spot for the lurid green alcoholic liquid that manages to warm and cool all at once. If you’ve not yet tried it in a hot chocolate on a cold day, you’re in for a treat, although be warned, the innocent flavour of this kitsch liqueur still packs a punch. Having the most important…