Combine first six ingredients plus seasonings and 2 T (30 ml) of beaten eggs; fold in lobster and crab; divide into 4 patties.
Transfer to parchment-lined baking sheet; refrigerate 5 hours.
Next, place remaining beaten eggs, flour and panko separately into three shallow bowls.
Dredge cakes in flour, then dip in egg, then panko.
Return to baking sheet; chill at least 45 minutes.
Just before serving, heat lobster broth.
Sauté patties in clarified butter about 2–3 minutes per side until golden.
Meanwhile, use an immersion blender to foam lobster broth.
Blend lemon juice and olive oil; dress cress or micro greens.
Divide lobster broth foam evenly on four plates, top with patty.
Garnish with dressed greens and serve immediately.
Prep time: 50 minutes.
Cook time: 1 hour 5 minutes.
Makes 4 servings.
