• 1/4 c. chopped fresh basil
• 2 tbsp. minced chives, plus more for garnish
Remove the shells from the deveined shrimp, and save the shells. Cut each shrimp crosswise into 3 pieces. Keep chilled until ready to use. Heat oil in a large saucepan over medium heat and add the shrimp shells. Sauté for 3 minutes or until shells turn pink. Add the corn cobs (set aside the kernels) and chicken stock to the pan, and bring to a boil. Lower the heat and simmer for 10 minutes. Drain the stock through a sieve and set aside.
Heat the butter in a large pot over medium heat. Add the onion and cook, stirring, until softened, about 6 minutes. Sprinkle in the flour and cook, stirring for 2 minutes. Purée 1 cup of corn with 1 cup of the prepared stock in a blender. Pour the mixture into the pan and add the stock along with the potatoes, salt and pepper. Reduce the heat to medium-low and cook 10 minutes. Add the zucchini and cook for another 5 minutes. Stir in the shrimp, corn, tomatoes, half-and-half, basil and chives. Cook for another 5 minutes. Ladle the chowder into bowls, garnish with more chives and serve hot.