Step 1

In a heatproof bowl, mix together chili flakes, chili powder, and sesame seeds until roughly combined.

Step 2

Heat the oil over medium high heat until 350°F and carefully pour it over the chili and sesame mixture. Gently stir immediately so that all the ingredients gets cooked evenly.

Step 3

Add the Chinese black pepper and stir briefly.

Step 4

Let the chili oil cool before storing in a sterilized container. You can also use the chili oil immediately. Just note that it will be hot.