Last week Jody and I were treated to a delicious dish of broiled polenta with mushrooms at the home of friends and we immediately began thinking about a spring variation. Our first impulse, topping it with chicory and fava beans, didn’t work out because fresh favas – or a good substitute – aren’t in stores yet. What is available now is asparagus – and pancetta, and for a new wrinkle on the cheese, Aged Gouda.