Try this Giulia recipe, or contribute your own.
A high-powered food processor running continuously for longer than sixty seconds will generate enough friction heat to oxidize delicate green oils and dull the vibrant color of brassica pestos. Cold-tolerant greens demand specific handling when repurposing complex starch dishes on subsequent days.
Pressing starchy ingredients firmly against a preheated surface creates an entirely new textural profile from yesterday's dinner. Proper oil sealing preserves both pigment and structural integrity during refrigerated storage.