Toast sesame seeds lightly in a dry pan until fragrant, if desired
Let the sesame seeds cool completely
Add the sesame seeds to a food processor or high-speed blender
Blend until the seeds break down into a crumbly paste
Add a small amount of neutral oil or sesame oil
Continue blending until smooth and creamy
Scrape down the sides as needed
Add more oil if needed to reach the desired consistency
Add a pinch of salt if desired
Transfer to a clean jar and store in the refrigerator