01 - Combine sake, soy sauce, mirin, honey, orange zest, orange juice, ginger, and garlic in a small saucepan. Bring to a gentle boil over medium heat, reduce heat, and simmer for 4 to 5 minutes until slightly thickened. Remove from heat and set aside.
02 - Pat salmon fillets dry with paper towels and season lightly with salt.
03 - Heat a nonstick skillet or grill pan over medium-high heat. Add a drizzle of oil if preferred. Place salmon fillets skin-side down and sear for 3 to 4 minutes until crisp.
04 - Flip the salmon and brush generously with the sake-orange glaze. Cook for another 3 to 4 minutes, brushing occasionally with more glaze until cooked through and caramelized.
05 - Remove from heat, drizzle remaining glaze over the salmon, then garnish with sesame seeds, green onions, and optional orange wedges. Serve immediately.