Avocado Nest with Seafood Filling and Saffron Sauce

Ingredients

• heavy cream
  1 quart
• pinch of saffron threads

  toasted and ground
  1 large
• salt

  as needed
  1 unit
• freshly ground white pepper

  as needed
  1 unit
• and 4 ounces shrimp (36 to 40 count)

  peeled, deveined, cut in ½-inch pieces
  2 pounds
• and 4 ounces scallops

  cut in ½-inch pieces
  2 pounds
• dried tomatoes packed in oil

  drained and diced
  1 ½ oz
• fresh dill

  chopped
  1 tbsp
• fresh lemon juice
  ½ cup
• California avocados (about 6 lbs.)
  12 unit
• white sesame seeds

  toasted, as needed
  1 unit
• black sesame seeds

  toasted, as needed
  1 unit
• flat leaf parsley or chervil sprigs
  36 unit