A butternut squash soup recipe is a set of instructions for preparing a dish made from butternut squash, which is a type of winter squash. The recipe typically involves roasting the squash until it is tender and then blending it with other ingredients such as vegetable broth, spices, and possibly some cream or milk to create a smooth and flavorful soup. Some popular variations of this dish may also include adding ingredients like garlic, onion, ginger, or various herbs for added taste and depth of flavor.