
This is not a complicated recipe. It is a technique disguised as one. The brown butter pasta asks you to do one thing well — cook butter past the point where most people stop — and rewards that patience with a sauce that tastes considerably more involved than it is. The milk solids caramelize in the pan, turning deep amber and releasing a toasty, almost hazelnut-like fragrance that no amount of cream or cheese could replicate from a standing start.
The rest of the dish is built around that base: a few sage leaves crisped directly in the brown butter, a splash of starchy pasta water to emulsify, and aged Parmigiano-Reggiano stirred until the sauce turns glossy. Ready in under 30 minutes, from pantry staples, and substantially better than its simplicity would suggest. Part of our recipe collection.
The window between perfectly browned butter and burnt butter is narrow, roughly 30 seconds at medium heat. Watch for the foam to subside after the initial boil, then look at the bottom of the pan. The solids should be a deep gold, not pale yellow, and not dark brown. The smell is the surest guide: a clear toasted hazelnut note means you are there. Remove the pan from the heat immediately, as the residual heat of the pan will continue cooking the butter for another few seconds.
If the butter turns very dark or smells acrid, start again. There is no saving burnt butter, and the bitterness will carry through the entire dish. The extra two minutes spent on a new batch is worth it.
400 g (1 lb) short tube pasta (such as rigati or rigatoni)
13 g (1 stick) unsalted butter
15 to 20 sage leaves
28 g (1 oz) Parmesan, finely grated, plus more for serving
Freshly ground black pepper