In a large saucepan, bring corn, yellow peppers, water, garlic and salt & pepper to a boil. Reduce heat to low; simmer for 25 minutes. Transfer soup (in batches) to a blender and whip until velvety. Pour through a sieve into a bowl, pushing on sieve with back of spoon to drain off solids.

Season with salt and pepper. Chill.3. Ladle into bowls and garnish with sour cream and dill.