Ingredients

• 1 ¹/₂ pounds carrots or 1 1/2 cups fresh carrot juice
  
• 2 stalks lemongrass
  
• 2 tablespoons butter
  
• 1 ¹/₂ limes, juiced
  
• 1 small chile, such as serrano, minced (if you like heat, leave in some of the seeds)
  
• 1 pound flaky white fish, such as haddock
  
• 1 teaspoon olive oil
  
• Pinch kosher salt
  
• small handful cilantro, roughly chopped
  
• 1-2 bundles somen noodles (about 4 ounces)
  
• hot sauce such as Sriracha, optional