2. Whisk until the mixture is pale yellow and very smooth.
3. In a slow and steady stream, drizzle in 1 cup canola oil (or 1⁄2 cup grapeseed oil and 1⁄2 cup olive oil). If the oil seems to sit on top and not blend in, stop adding oil and continue whisking until it's completely blended and smooth. Continue with the remaining oil.
4. The final result will be thinner and more yellow than commercial mayonnaise. It should fall off the whisk, not in big clumps, but also not in ribbons. Taste it and add salt, garlic, fresh herbs, lemon, or orange juice, as desired. Store in an airtight container in the refrigerator for up to 5 days.
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