4 cups low-sodium chicken stock
1 1/2 ounces dried porcini mushrooms
3 tablespoons butter
1 medium onion, diced
1 1/2 cups Arborio rice
1/2 cup dry white wine
1/2 cup grated Parmesan
3/4 cup (3 ounces) Gorgonzola, crumbled
1/4 cup chopped fresh chives
1/2 teaspoon kosher salt
1/4 teaspoon freshly ground black pepper