Guam “Volcano” Tuna from Planet Barbecue by Steven Raichlen

Ingredients

• Coarse salt (kosher or sea)
• Lemon or lime wedges, for serving
• ½ cup extra-virgin olive oil
• 6 to 8 tablespoons cracked black peppercorns
• 1 hot chile, thinly sliced crosswise (see Note)
• 2 tablespoons Old Bay seasoning
• 1 lemon
• 1 piece (2 inches) fresh ginger, peeled (for 1 tablespoon grated)
• 1 scallion, both white and green parts, trimmed and sliced crosswise paper-thin
• ½ cup soy sauce
• 1 tablespoon wasabi powder, or 1 tablespoon wasabi paste