1 egg yolk
Juice of 1/2 lemon, plus more for garnish
1 cup grapeseed oil
1 1/2 tablespoons chopped green peppercorns
10 head-on shrimp (preferably Maryland)
Extra-virgin olive oil, for garnish
It is crucial that cold smoking only be done outdoors, or in a kitchen that is ventilated to the outdoors.