Roast butternut squash at 425°F until the flesh is dark golden and slightly caramelized at the edges, which intensifies natural sweetness and creates depth of flavor that elevates the entire sauce.

Gradually whisk in pasta water instead of only milk to reach your desired consistency—the starch creates a naturally thicker, more luxurious sauce that clings beautifully to cavatappi.

Fry fresh sage leaves in butter until they're paper-thin and brittle, then store separately until plating; this preserves their texture and prevents them from becoming soggy in the creamy sauce.

Cook your breadcrumbs in the same butter you used for sage to infuse them with that herbaceous flavor, creating a cohesive, crunchy topping that complements the dish's overall profile.

Purée the roasted squash while it's still warm and steaming—this ensures the smoothest, most velvety consistency without lumps, and warm ingredients incorporate better with the butter and cream base.