The best shapes for butter and sage
Butter cooked until the milk solids brown and it smells of nuts, with sage leaves crisped in it. Nothing else goes in. The restraint is the point: it is the standard dressing for filled pasta because it adds fat and aroma without arguing with whatever is inside the parcel.
Browned butter with sage leaves. The default for stuffed pasta because it coats the parcel without competing with the filling.
Canonical: ravioli, tortelloni, agnolotti.

The filling carries roasted meat, so the dressing stays quiet and lets it lead.

The dough is rich and the filling soft, milky ricotta against salty cured mortadella and nutmeg, so the dressing stays light to let the parcel speak.

A strand under a millimeter wide is nearly all surface.

The filling is sweet and soft, built on cooked squash and cheese, so the dressing stays light and lets it lead.

This is a filled hat, so the sauce works from the inside out.

The filling is sealed inside the twisted parcel, so the dressing only has to coat the smooth outer dough and stay out of the way of what is inside.

The filling is sealed inside thin folded dough, so the dressing only has to coat the outer pasta and frame what is already inside.

The filling does the talking, a sweet earthy beet and potato mix, so the dressing stays spare and lets it through.

Cjarsons carry a sweet-and-savory filling, so the dressing stays restrained and aromatic rather than tomato-based.

The embossed relief is the point.

The filling carries the dish, so the dressing stays quiet.

Marubini are a brodo pasta before they are anything else.

The seasoning lives in the sealed filling, so the dressing only needs to coat the parcels, not carry the dish.

The porous buckwheat surface and flat ribbon form grab melted cheese and butter rather than thin liquids.

The filling carries the flavor, so the sauce's job is to coat, not compete.

The filling is meatless, a compact mix of grana, breadcrumbs, egg, parsley, garlic, and warm spices including nutmeg and cinnamon, so it asks for a dressing that frames it rather than competes.

This is a very thin, yolk-rich flat ribbon, so it wants light fat-based dressings that cling to the fine strands without burying them.

The filling leads and the dressing stays light.

Tortellini are built for broth.

The bigger parcel asks for a sauce that frames it rather than hides it.
What we would not put it on
Shapes with deep bores. Browned butter pools inside the tube where the sage cannot follow, so the aroma stays in the pasta rather than on it.
Want it the other way around? Start from a shape in the Pairing Finder.
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