Here’s an easy broiled haddock recipe with parmesan, tomatoes, and basil—a high-protein Italian fish dinner on the table in a snap! Haddock is a fish that will benefit greatly from being broiled.

1. In a saucepan, combine the vinegar, sugar, and salt. Set over high heat and bring to a boil. Turn the heat down to medium and simmer the mixture for 10 minutes, or until the liquid is reduced by ...