Heat the peanut oil in a skillet over a low flame to 175ºF/80°C.
Add all of the spices and cook until the oil reaches a temperature of 225ºF/107°C over moderately low heat.
Simmer at 225ºF/107°C for 5 minutes.
Pour the mixture into a heatproof jar and leave it to cool.
Mix in the toasted sesame oil.
