Add everything to a food processor and blitz until smooth.
Taste and adjust for seasoning. Store in a mason jar in the fridge for 4 - 5 days.
Immersion Blender Method
Add everything to a cup or glass large enough for the immersion blender. You may want to chop up the basil a bit so it's easier for the blender. Then simply blend everything until smooth.
Taste and adjust for seasoning. Store in a mason jar in the fridge for 4 - 5 days.