Mussels in Garlic Miso Broth

Ingredients

• 4 1/2 pounds mussels
• 3 tbsp vegetable oil
• 2 tbsp sesame oil
• 1 onion (finely chopped)
• 4 garlic cloves (finely chopped or minced)
• 1 tomato (cored, seeded, coarsely chopped)
• 1 tbsp white miso
• ¾ cup vegetable or chicken broth
• ¼ cup cooking cream or soy cream
• 1 tsp grated ginger
• 1 tbsp fish sauce
• 1 tbsp mirin
• 1 tbsp unsalted butter
• 2 tbsp finely chopped chives
• chili oil
• chili pepper
• crusty bread