Place egg yolks into the blender and beat on high for 1-2 minutes or until color starts to lighten.
With blender running, start to VERY slowly drizzle in oil. Amounts will vary, so what you are paying attention to is SOUND. You will very noticeably hear the sound change from sloppy and wet to thick and creamy.
At this time sprinkle in your desired amount of salt. Don't worry, you can fold in more later if you wish. Give it another quick whirl to blend.
If you've tried this recipe, come back and let us know how it was!
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Notes
Oil amounts will vary greatly based on the size of your egg yolks and the type and thickness of oil you are using. Instead of focusing on measurements, focus on the SOUND the mayo is making in the blender to know you have the correct amount.