Grilled Corn Chowder Recipe

<>1 tablespoon canola oil

<>1/2 cup white onion, chopped

<>1 teaspoon salt, divided

<>2 medium potatoes, peeled and cut into ½-inch cubes

<>4 cups grilled corn kernels, plus extra to garnish

<>1 tablespoon lemongrass (tanglad), finely chopped (white part only)

<>1 tablespooon bell pepper, finely chopped

<>3 tablespoons all-purpose flour

<>4 cups chicken stock

<>1 1/2 cups coconut milk (gata)