Ingredients

  • 3 pounds medium red potatoes
  • 2 tablespoons mayonnaise
  • 1 1/2 tablespoons fresh lemon juice
  • 2 large garlic cloves, smashed
  • 1/2 tablespoon Dijon mustard
  • 3/4 cup extra-virgin olive oil
  • 1/4 cup vegetable oil
  • Salt and freshly ground pepper
  • 1 tablespoon thyme leaves

Method

  • In a large saucepan, cover the potatoes with cold water and bring to a boil.
  • Cook over moderate heat until tender, 30 minutes.
  • Drain and let cool for 20 minutes.
  • Cut the potatoes in half.
  • Meanwhile, in a food processor, process the mayonnaise, lemon juice, garlic and mustard.
  • With the machine on, add 1/2 cup of the olive oil and the vegetable oil in a thin stream and blend until emulsified.
  • Season with salt and pepper and refrigerate until chilled.
  • Light a grill.
  • Toss the potatoes with the thyme and the remaining 1/4 cup of olive oil and season with salt and pepper.
  • Grill over a hot fire for about 10 minutes, turning occasionally, until browned and sizzling.
  • Transfer the potatoes to a platter and serve with the aioli.