Tonkotsu Ramen with Sous Vide Pork

Ingredients

• 1/2 pound (200 g) boneless pork leg
• 1 tablespoon extra virgin olive oil
• 2 1/4–4 1/2 pounds (1–2 kg) pork bones
• 2 gallons (8 liters) water
• 1 tablespoon soy sauce
• 1 tablespoon cooking sake
• 1 tablespoon mirin
• 2 large eggs
• 2 (3-ounce) packages instant ramen noodles
• 2 tablespoons pickled bamboo shoots
• 2 tablespoons drained canned sweet corn
• 1 scallion, thinly sliced
• Sesame oil
• Chile oil, optional