Position a rack 3 inches from the broiler. Preheat the broiler to high.
Slice off the ends of each Orange (4) and the Lemon (1). Squeeze the juice out of those ends into a medium bowl. Discard the rind. Stand each piece of fruit on one of its cut sides. Run a knife down the side of each orange and the lemon to remove the skin.
Squeeze the juice out of those skins into the bowl, then discard. Remove each citrus segment by running a knife down the side of each membrane and slicing the segment out. Drop it into the bowl of juice.
Once all of the segments are removed, squeeze the remaining membranes into the bowl to extract the juice.
Pour 1 tablespoon of the juice from the bowl of citrus segments into a large bowl. Add Honey (1 tablespoon) and 1 tablespoon of Olive Oil (3 tablespoon). Whisk to combine.
Add Arctic Char Fillet (4) and toss to coat. Let marinate for at least 5 minutes.
Meanwhile, pour the remaining 2 tablespoons olive oil into the bowl with the citrus segments. Add the Fresh Chives (2 tablespoon) and Sea Salt Flakes (1 pinch). Stir to combine. Taste. It should taste similar to a salad dressing with perhaps less of a bite.
Rub a sizzle pan or sheet pan or broiler pan lightly with Neutral Oil (to taste). Remove fillets from marinade, letting excess drip off—no need to pat dry. Discard excess marinade.
Place the char fillets skin side down in the pan. Season the flesh with Sea Salt Flakes (to taste). Place a sheet pan upside down on the rack, then place the pan with the fillets in it on top. Broil 4 to 5 minutes.
Remove pan from oven and immediately transfer fillets to a serving platter. Spoon sauce over top. Pass extra sauce on the side.