Here at The Lake in Northwest Baltimore, a few dollars buys a passel of lake trout, fried to crunchy, crispy perfection, and, if you like, doused with hot sauce. Get it with a side of candied sweets and mac and cheese. Locals know it’s not really trout — and it isn’t really from a lake. (There are no natural lakes in Maryland). The real fish is whiting — or more scientifically, merluccius bilinearis — from the cold waters off the northeast coast of the United States.