I am quite lazy as when I make this home made Mayonnaise I measure all my ingredients into a lb jar and then use a stick blender to amalgamate.
8 fl oz Oil sunflower or vegetable
Whizz all the ingredients together in the jar put on a jam jar lid and store in the fridge. Use as required. It needs to be kept chilled at all times. Try and use up within 4 days maximum as this is volatile due to the use of fresh egg.