Oyster Mushroom Risotto

Name: Oyster Mushroom Risotto
Prep time: 10 min
Cook time: 30 min
Total time: 40 min
Cuisine: American, Italian
Ingredients: 8 cups (2 L) water; 2 tablespoons Fody Chicken Soup Base; 2 tablespoons (20 g) dried, crumbled porcini mushrooms; 8 tablespoons (113 g) unsalted butter, (cut into pieces, divided); 3/4 cup (48 g) chopped scallions, (green parts only); 1 pound (455 g) oyster mushrooms, (cleaned, tough stems removed (and saved; see Tips), roughly chopped); Kosher salt; Freshly ground black pepper; 1 1/4 cups (246 g) Arborio rice; 1/2 cup (120 ml) dry white wine; 1/4 cup (25 g) grated Parmesan cheese, (plus extra for serving)