Sous-Vide Bay Scallops on Soy Ginger Espuma with Mushrooms and Spinach

Step 1
Heat water in a sous-vide water bath to 125 degrees F (52 degrees C).

Step 2
Season scallops with salt and pepper; place scallops in a sealable plastic bag, clustered together. Seal (on low pressure if using a vacuum sealer), removing as much air as possible without smashing scallops. Cook in preheated water bath for 30 minutes.

Step 3
Whisk soy sauce, balsamic vinegar, white sugar, lime juice, wasabi paste, and sesame oil together in a bowl. Slowly whisk in peanut oil until vinaigrette is smooth.

Step 4
Place white wine, mirin, ginger, and shallots in a skillet over medium heat; simmer until most of the liquid has evaporated, 4 to 5 minutes. Add cream; simmer until thickened, about 2 minutes more. Reduce heat to low; whisk in butter, 1 tablespoon at a time, until sauce is thickened and smooth, 3 to 5 minutes. Whisk in soy sauce.

Step 5
Strain sauce into a bowl; pour into whipping siphon and charge. Shake to combine.

Step 6
Heat olive oil in a large skillet over medium heat. Add mushrooms; cook and stir until soft and tender, about 5 minutes.

Step 7
Heat 1/4 cup vinaigrette to just boiling in a separate skillet. Add spinach; cook until just wilted, about 30 seconds. Remove from heat.

Step 8
Heat grapeseed oil in a large skillet over high heat. Remove scallops from plastic bag; pat dry with a paper towel. Cook until golden brown, 30 to 45 seconds per side.

Step 9
Spoon spinach and mushrooms onto serving platter. Spray some of the sauce onto the serving platter; top with scallops to serve.