It is usually served with a small dish of chili oil.

The dumplings are usually served with a small dish of chili oil.

Very spicy chili oil is added later during the cooking process.

Stir in the remaining fish sauce, vinegar and chili oil.

Or use hot Chinese chili oil as the heat component.

Season with chili oil and divide among four small dishes.

Season to taste with the chili oil and stir in the scallions.

Serve at once, with the chili oil, sprouts and cucumber on the side.

A jar of it was sitting in the kitchen, next to some chili oil.

In a soup pot over high heat, warm the chili oil.