The nights are drawing in, there’s a definite autumnal chill in the air, and Halloween is just round the corner. So what better way to celebrate this time of year than with a hearty bowl of pumpkin soup? The addition of the rosemary and the ginger add a lovely fresh zing to this recipe. Pick Your Pumpkin I often cook butternut squash soup, but this time I decided to head to my local pick-your-own farm to explore the different pumpkin and squash varieties available.     For this recipe I picked this sweet harlequin squash, a confection squash and a racer pumpkin, but…