My favourite ice cream flavour is mint chocolate chip but I've been experimenting lately and chocolate and peanut butter is definitely up there! (chezcateylou.com)
And the best part is that you can make it with a variety of ice cream flavours. (warmvanillasugar.com)
It was a little bit of a guess, informed by some reading here and there, but it was the most delicious ice cream flavour I've ever tried. (sugarandcinnamon.com)