Have all ingredients at room temperature so they will emulsify easily. Get everything ready and measured.
Add the eggs through the 1/2 cup of olive oil into the food processor, and blend well
remove the plug of the food tube, and very slowly drizzle in the next cup of oil. Do it very slowly. YOu'll start to see mayonnaise develop.
Leave the processor running and slowly add in the lemon juice. Process until it's all incorporated.
Slowly, once again, drip in the last cup of oil. If necessary, stop the processor to scrape down the sides. I find that anything not incorporated is easy to stir in at teh end.
Use more or less olive oil as you like, and try different oils for different flavor. I find pure olive oil too overpowering.