Preheat oven to 425ºF.
In the bowl of a food processor, add the shallots, parsley, thyme, marjoram, lemon zest, vinegar, salt and pepper. Pulse the machine to chop everything up then stream in the EVOO with the machine running until it forms a smooth paste. Transfer the mixture to a small bowl and reserve. Rinse out the processor bowl and return it to the machine base.