Butternut Squash Soup without olive sesame carrot

2 1/2 lbs butternut squash, peeled, seeded, and cut into 2-inch chunks (about 7 cups) 2 tablespoons unsalted butter 1 leek , white and green parts only,[...]

24 large shrimp , in shell peeled, leaving tail and first segment of shell intact, and deveined (about 1 lb.) 1 tablespoon finely grated peeled fresh ginger[...]