Note: This is a very large batch. I recommend using a large capacity blender, or blending in batches if you have a smaller blender. Total yield is about 6-7 cups.
Start by prepping your veggies; quarter your onion, peel garlic, remove jalapeno stem, and rinse cilantro.
Next, combine everything in your blender or food processor and pulse until smooth. Taste and adjust seasonings if desired.
Serve immediately or refrigerate for 1-2 hours to let flavors meld. Store in a sealed container in the fridge for as long as it lasts - we've never kept any around long enough to see if it ever goes bad!