Cold Corn Soup for Summer

Bahan-bahan (6 porsi)

• 8 ears yellow corn ((Note 1 for frozen corn))
• 3 litres / 3 quarts water
• 100 g / 7 tbsp unsalted butter
• 2 g arlic cloves (, chopped)
• 1/2 onion (, finely sliced)
• 1 celery stalk (, sliced)
• 1/2 leek (, white part only, finely sliced (sub 1/2 onion))
• 1 tsp salt (, cooking/kosher salt, plus more as needed)
• 1 cup cream (, full fat)
• 2 sprigs of thyme
• 1 bay leaf (, preferably fresh otherwise dried)
• 1 tsp black peppercorns
• 1 tsp coriander seeds
• Extra corn kernels (, sautéed in butter until golden with a pinch of salt and pepper)
• 1/4 cup green onion (, finely sliced)