Polenta, Where Have You Been All My Life?

Polenta is only water, salt, and cornmeal, unless a cook chooses, in the style of risotto, to finish with a knob of butter or a hill of Parmesan cheese.  It is one those dishes so simple, its execution can be lackluster or transcendent, depending on who makes it.  What happens when these three things are combined is anyone's guess.  The result can be like cornbread blended with water, a sou...