Wonton Soup

Ingredients

• 2 teaspoons potassium carbonate koon chun sells it in bottles
• 300 grams shrimp medium sized
• 250 grams shrimp shells including heads
• 15 grams dried pollack or dried flounder
• 5 cups water
• 3 scallions green and white parts seperated
• 1 tablespoon sugar
• 1 1/4 teaspoon salt to taste
• 1/2 teaspoon soy sauce
• 1 + 1/2 teaspoon potato starch
• 1 teaspoon oyster sauce
• 1 + 1/2 teaspoon shaoxing wine or dry sherry
• 1/2 teaspoon ginger juice
• white pepper to taste
• 1/2 teaspoon sugar
• 1/4 teaspoon salt
• 280 grams thin yellow chinese noodles
• 1 package wonton wrappers
• sesame oil