Start by washing your fresh jalapeno and cilantro thoroughly. If you prefer a milder flavor, slice the jalapeno in half and remove the seeds and ribs.

In a food processor, combine the prepared jalapeno, garlic, pine nuts, and fresh cilantro. Sprinkle in the salt and ground black pepper. Pulse for about 15-20 seconds until coarsely chopped.

With the processor running, slowly drizzle in the extra virgin olive oil through the feed tube, blending for approximately 30 seconds until smooth.

Taste the pesto and adjust the seasoning if needed. Add more salt or pepper to balance flavors.

Transfer the finished pesto into an airtight container. Serve it right away or store properly.