1, Mix yolk with lemon juice.
2. Slowly beat the yolk with 3rd speed while pouring oil in thin stream into the beaten egg, dont stop beating until it turn thick and creamy.
3, if you think the mayo is too thick you can add 1 or 2 tsp water , lastly add pinch of salt.
4. Store mayo in sealed bottle , can last for a week in the fridge.