In a large bowl, whisk together first 4 ingredients. Slowly add olive oil while whisking constantly.
Test Kitchen tips
For the best results, start with all the ingredients at room temperature. If the oil is cool or cold, it is much more difficult to form the emulsion.
To get the most flavor out of these simple ingredients, mix up the vinaigrette and let it sit at room temperature 1 to 3 hours before serving. Refrigerate any leftovers; bring cold vinaigrette to room temperature before shaking to combine.
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