In a large bowl, whisk together celery juice and wasabi. Sprinkle in 1 packet of soy lecithin. Using the hand mixer in the kit (can also use an immersion blender) whisk for 3 to 4 minutes to create the foam. Let sit for 3 minutes.
In a rocks glass, brush the rim with the butter. Dip in crushed black salt. Add ice, vodka and bloody Mary mix. Stir. Top with celery foam, garnish with lemon and serve.