Salt 1 pound whole wheat or whole grain penne with lines 2 bundles broccolini, trimmed and cut into 1-inch lengths or 1 large head broccoli, trimmed and cut into small florets 4 tablespoons butter 2 cloves garlic, finely chopped 3 tablespoons flour 1/2 cup chicken stock 2 cups milk 2 1/2 cups extra-sharp yellow cheddar