01 - Place the cilantro leaves, garlic cloves, lime juice, seeded jalapeño (if using), sea salt, black pepper, and honey or agave into a blender or food processor bowl.
02 - Pulse the mixture several times until the cilantro and garlic are roughly chopped and beginning to break down.
03 - With the blender running on low, slowly drizzle in the olive oil followed by the water. Continue blending until the dressing is smooth and fully emulsified, scraping down the sides of the bowl as needed.
04 - Taste the dressing and adjust the seasoning as desired, adding additional lime juice, salt, or sweetener to balance the flavors.
05 - Transfer the dressing to a glass jar or serving container. Use immediately or refrigerate for up to 4 days. Shake well before each use as separation may occur.