How to Make It
Place packed fresh cilantro leaves, packed fresh cilantro stems, packed fresh flat-leaf parsley leaves, sliced unseeded serrano chiles, fresh lemon juice, garlic clove, kosher salt, ground cumin, ground coriander, and ground cardamom in a blender. Pulse until finely chopped, about 7 times. With blender running, gradually add canola oil until smooth. Serve immediately.