Butternut Squash With Pistou without drippings olive

1 1/4 kg butternut squash or 1 1/4 kg kabocha squash or 1 1/4 kg pumpkin sunflower oil 20 g butter (the original recipe calls for 40) 1 medium onion , chopped[...]

2 lbs butternut squash, peeled 1 1/4 lbs idaho potatoes , peeled (I used sweet potatoes) salt & freshly ground black pepper 6 tablespoons grated parmesan[...]

5 tablespoons unsalted butter 1/4 teaspoon crushed red pepper flakes 1 1/2 cups butternut squash 1/4 cup amaretto cookie crumbs salt 2 egg yolks 1/2 cup[...]