Garlic Mayonnaise

Directions

1. 1
   Combine the egg yolk, vinegar, lemon juice, garlic, and salt in a medium bowl and whisk to combine.
2. 2
   To keep the bowl steady as you whisk, wet a kitchen towel, squeeze out the excess water, and roll it up on the diagonal.
3. 3
   Lay the rolled towel in a ring on your work surface and set the bowl in the center of the ring.
4. 4
   Combine the grapeseed oil and olive oil and add the oils a few drops at a time, whisking constantly to form an emulsion.
5. 5
   When youve added about half of the oil, begin to drizzle the oil in a slow steady stream, continuing to whisk constantly, until all of the oil has been added.
6. 6
   Taste for seasoning and add more salt, if desired.
7. 7
   The garlic mayonnaise can be made up to three days in advance; transfer it to an airtight container and refrigerate until you are ready to use it.