Prepare the Marinade: In a medium bowl, combine ¼ cup olive oil, ½ cup soy sauce, 4 minced garlic cloves, 3 tablespoons lemon juice, 1 teaspoon lemon zest, 1 tablespoon honey, and 1 tablespoon brown sugar. Mix well to ensure the honey and sugar are fully dissolved.

Marinate the Salmon: Place the 2 lbs salmon fillet in a large resealable plastic bag or shallow dish. Pour the marinade over the salmon, ensuring it's fully coated. Seal the bag or cover the dish and refrigerate for at least 2 hours to let the flavors infuse.

Prepare the Grill: Preheat your grill to medium-high heat. Lightly oil the grill grates to prevent sticking by brushing them with a bit of olive oil or using a grill-safe spray.

Grill the Salmon (Part 1): Remove the salmon from the marinade, allowing any excess to drip off. Place the salmon flesh side down directly on the grill grates. Grill for about 5 minutes, or until the flesh has nice grill marks and starts to pull away from the grates.

Optional Glaze: While the salmon is grilling, you can make a glaze using the leftover marinade. Pour the marinade into a small saucepan and bring it to a boil over medium heat. Reduce the heat and let it simmer until it thickens into a glaze, stirring occasionally. This should take about 5-10 minutes. Drizzle the glaze over the salmon for extra flavor.

Serve: Remove the salmon from the grill. Garnish with freshly chopped parsley or green onions. Serve immediately, optionally drizzling with the glaze, and enjoy your delicious, juicy grilled marinated salmon!

Tips: Use a meat thermometer to ensure the internal temperature of the salmon reaches 145°F (63°C) for safe consumption. Cedar planks add a nice smoky flavor but should be soaked in water for at least 30 minutes before grilling to prevent burning.

Enjoy your perfectly grilled marinated salmon!