In a bowl, whisk together the orange juice, coconut aminos, sea salt, orange zest, garlic, ginger, and vinegar. Set aside ¼ cup for marinating and another 2-3 tablespoons for basting. The remaining sauce will be used for glazing later.
Prepare the Salmon
Run your fingers along the salmon fillet to check for any bones, then pat it dry with paper towels. In a 7x10-inch (18x25 cm) baking dish, place the salmon skin-side down and pour in the ¼ cup of orange sauce. Tilt the dish to distribute the sauce evenly, then carefully flip the fish so it’s skin-side up. Cover and refrigerate for at least 30 minutes or up to 1 hour. Once marinated, discard the marinade.
Season and Arrange on the Sheet Pan
Preheat the oven to 400°F (200°C). Line a sheet pan with parchment paper and place the salmon skin-side down. Lightly sprinkle with salt and drizzle with olive oil, using your hands to distribute both evenly. Arrange the orange slices around the salmon, avoiding placing them directly on top.
Bake the Salmon
Bake for 15-18 minutes total. After the first 10 minutes, remove the sheet pan from the oven and brush the reserved 2-3 tablespoons of orange sauce over the salmon. Return the pan to the oven and continue baking for another 5 to 8 minutes, until the thickest part of the fillet reaches 125°F-130°F (52°C-54.4°C) for medium doneness.
Check for Doneness
For reference, Atlantic salmon has a higher fat content and stays moist longer, making 130°F (54.4°C) ideal for medium doneness.
Wild-caught salmon is leaner and cooks faster, so it’s best removed from the oven at 120°F-125°F (49°C-52°C), as it will continue to cook from residual heat.
The FDA recommends 145°F (63°C), but at that temperature, the salmon will be fully cooked through and firmer in texture. Check the internal temperature after about 15 minutes of total baking time to avoid overcooking.
Thicken the Sauce
Pour the remaining orange sauce into a small saucepan and whisk in the tapioca starch. Heat over medium-low, stirring constantly, until the sauce thickens, about 1 minute.
Garnish and Serve
Pour the thickened sauce over the salmon and sprinkle with sesame seeds and chopped scallions. Serve immediately.
Notes
Marinating Time: I tested marinating the salmon for up to 24 hours. While the flavor was fantastic, the texture became softer—almost mushy—due to the citrus marinade breaking down the fish. If you’re not too picky, marinating a day ahead can be a great meal prep option, and the orange flavor really shines through.
Orange Juice Choice: Use pulp-free, store-bought orange juice for the best flavor. Store-bought juice is often more concentrated than fresh-squeezed, making the citrus flavor more intense and punchy. It also keeps the sauce smooth, allowing the bright, tangy notes to shine without extra pulp or bitterness.
Smaller Portions: This recipe works just as well with salmon fillets if you’re making a smaller portion.
Storage: Leftover salmon can be stored in an airtight container in the fridge for up to 3 days.