on the BBQ (a real BBQ, not one of those gas ones):
1 lemon, sliced
approx 2 tsp unsalted butter (never use margarine)
2 fillets (or one fish, dressed)
a couple of shots of Mrs. Dash, low sodium (any flavour is good)
1/2 cup Riesling wine
Instructions:
Heat the briquettes to med heat (they should be almost all white)
place a piece of tinfoil on the BBQ and baste it with butter (save some for the fish)
place the fish on the tinfoil when the butter JUST starts to bubble (it will brown quickly so pay attention)
place the rest of the ingredients on top of the fish and drizzle the wine on top
close the lid on the BBQ and wait approx 10-15 minutes (depending on the size of the fillets/fish)
check to make sure the fish is done and remove it
Plate the fish and pour the rest of the wine into a glass

enjoy