Start by making the glaze. Add soy sauce, agave and coriander to a non-stick pan and bring to a simmer, mixing constantly. Once the sauce thickens, take it off the heat.
Then prepare the salmon. Always wash and pat dry your fish. Typically, I would salt and pepper before cooking the salmon, but with the glaze it's not necessary. Brush a thin layer of he cooled glaze over the salmon. (Reserving half of the glaze for later).
To broil the salmon, place the fillets into your broiler at 500 degrees for 10-12 minutes. You want to keep an eye on the fish, so that the glaze does not burn. If
Once the fillet is cooked, drizzle with the remaining sauce and serve.