1In a blender, combine egg, mustard, vinegar and 2 thsps of the oil.
Blend for 30 seconds . With blender still running slowly drizzle the remaining oil into mixture until all oil is used and mixture is thick.
taste and adjust seasonings. Store in ajar in fridge.
Just to let you all know I used raw eggs in this recipe so please feel free to use pasteurized eggs if you have any health concerns or for elderly or pregnant mums.