Corn, Coconut And Fennel Chowder

• 1 serrano chiles seeded (fresh)
• 1 slivered lime (finely fresh)
• 1,200 ml coconut milk
• 1,900 ml rich chicken stock
• 600 gr corn kernelsgt (fresh)
• 475 gr onion thinly (yellow)
• 180 gr leeks
• 45 ml olive oil
• 26 gr garlic (chopped)
• 8 gr cornstarch