Mealie Soup (Corn Soup)

Name: Mealie Soup (Corn Soup)
Cuisine: South Africa
Ingredients: 2 ounces butter; 1 cup finely chopped onions; 2 tomatoes, chopped; 2 cups canned whole corn, well drained; 2 cups creamed corn; 1 can evaporated milk; 3 cups chicken stock; 1 tablespoon salt; 1 teaspoon black pepper.