Split the cooked sweet potatoes and scoop out the inside into a food processor. Add everything else and whiz to form a thick puree. Spoon onto a serving plate and spread out from the centre in a circular motion. Finish with a drizzle of olive oil, sprinkle liberally with the Za’atar and chopped parsley.
To make the Za’atar:
In a dry pan, toast the sesame seeds on a high heat for one to two minutes until they are lightly coloured. Place all the ingredients in a blender and process until finely mixed. You can store in a jar in the fridge for up to a week.
Za’atar