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Avocado with Shallot and Tarragon Mayonnaise

By Natalie • July 14, 2014 • 0 Comments

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Avocado with Shallot and Tarragon Mayonnaise

Author Notes: This was one of those last minute, "we need a salad, let's see what we can make with what we have" recipes. Luckily it turned out great! It's flavorful, simple, elegant, and surprisingly beautiful to look at. —Natalie

Makes about 1 1/3 c mayonnaise, filing more than 10 avocado halves

1 large egg yolk
1/2 teaspoon Dijon mustard
1 tablespoon freshly squeezed lemon juice
1 teaspoon white wine vinegar
1 cup neutral oil, such as canola
1 tablespoon minced shallot
1 tablespoon minced fresh tarragon leaves
1/2 teaspoon salt
1/4 teaspoon freshly ground black pepper
ripe avocados

Whisk together egg yolk, lemon juice, and vinegar until combined.
Slowly whisk in the oil, drizzled in a very thin stream, beginning a few drops at a time. Continue very slowly drizzling in the oil, whisking all the while, until all the oil is combined and the mayonnaise is very thick (this could take 10 minutes).
If at any point you add too much oil, stop pouring and whisk the mayonnaise mixture until the oil is fully incorporated. Then resume the slow addition of oil while whisking.
Once the mayonnaise is completely emulsified, whisk in the shallot, tarragon, salt and black pepper. Taste for seasoning, and add more salt and/or pepper as necessary.
Refrigerate in a covered container at least an hour so the flavors meld.
Fill halved and pitted avocados with the shallot and tarragon mayonnaise and serve.
Mayonnaise can be safely stored in the refrigerator about 1 week.