Hoba Miso with Beef

Bahan-bahan (2 porsi)

• 2 dried hoba leaves ((magnolia leaf))
• ½ Tokyo negi (long green onion) ((or 1 scallion/green onion))
• 1 shiitake mushrooms
• 7 oz well-marbled beef steak
• 1 g reen onion/scallion
• 2 Tbsp miso ((I used koji miso from Takayama))
• 1 Tbsp mirin
• 1 -2 tsp sugar