Peel all garlic cloves and trim the ends. Make sure cloves are fresh and firm.
Add garlic and salt to a food processor. Blend until it becomes a fine, snowy paste.
Add a small splash of lemon juice and blend again for a few seconds.
With the processor running, slowly drizzle oil in a thin, steady stream.
Alternate — a little oil → a touch of lemon → oil again — until mixture thickens.
Continue blending until the paste becomes white, fluffy, and cloud-like.
Transfer to an airtight container and refrigerate.