Wash the coriander (and parsley if using) thoroughly. Roughly chop.
In a food processor or blender, combine coriander, parsley, garlic, green chilies, cumin, coriander, cardamom, and salt.
While blending, slowly add olive oil and lemon juice until the mixture forms a smooth, vibrant paste. If the sauce is too thick, add 1–2 tablespoons of water to reach your desired consistency.
Adjust salt, lemon juice, or chili according to your preference. For extra heat, add more green chilies.