No marinade required. The trick to grilled salmon, so that your fillets stay whole and don’t fall through the grill grates, is to use skin-on pieces. Grill the salmon flesh side down first. Once you have some grill marks, turn over the salmon so that now the skin side is on the grill. As the salmon cooks, the flesh tends to flake, but if the salmon does most of its cooking skin-side down, the skin will help keep the salmon together so it doesn’t flake apart into the grill. A little butter with dill is all you need to serve, with a few slices of lemon. Perfect! Coat the salmon in the remaining 2 tablespoons of oil and place it, skin side up, onto the grill grates. Grill over high heat for 2 to 4 minutes (depending on how thick your salmon pieces are) undisturbed. Carefully turn the salmon with a spatula. If using a gas grill, reduce the heat to medium. If using a charcoal grill, move the salmon to the cooler side of the grill. Cover and grill it for another 3 to 5 minutes, depending on how well done you prefer your salmon. The salmon should be just cooked through when done.