Preheat the oven to 180°C/350°F. Spread the white sesame seeds onto a parchment-lined baking sheet and bake in the oven for, approx. 5 min. Allow to cool.
Add the toasted seeds to a blender along with the grapeseed oil and salt and process until smooth, adding more oil if needed to reach a creamy consistency. Mix until a thick and creamy consistency is formed.