Sous Vide Pork Belly

Ingredients

• 2 1/2 pounds pork belly, in as large pieces as possible
• 1/2 cup soy sauce
• 1/2 cup mirin
• 1/2 cup granulated sugar
• 2 tablespoons fish sauce
• 2 whole scallions, roughly chopped
• 3 medium cloves garlic, roughly chopped
• 1 (2-inch) chunk ginger, peeled and roughly chopped