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Leftover Roast Beef Tenderloin Sandwich, Rocket, Heirloom Tomates, Dijon Aioli

I had to do something with this leftover roast beef tenderloin I made and since my wife loved it so much and I did not, I thought I would buy some good crusty white bread from the market along with some heirloom tomatoes.

I started by making a Dijon Aioli

           2 garlic cloves

1 large egg yolk

  • 2 teaspoons fresh lemon juice
  • 1/2 teaspoon Dijon mustard
  • 1/4 cup extra-virgin olive oil
  • 3 tablespoons vegetable oil

Mince and mash garlic to a paste with a pinch of salt using a large, heavy knife. Whisk together yolk, lemon juice, and mustard in a bowl. Combine oils and add, a few drops at a time, to yolk mixture, whisking constantly, until all oil is incorporated and mixture is emulsified. (If mixture separates, stop adding oil and continue whisking until mixture comes together, then resume adding oil.)

Whisk in garlic paste and season with salt and pepper. If aioli is too thick, whisk in 1 or 2 drops of water. Chill, covered, until ready to use.

Slice and lightly toast  a couple of slices of crusty white bread. Spread a light layer of Dijon aioli. Top with thin sliced roast beef tenderloin, heirloom tomatoes sliced and a little rocket or arugula.

Reservations
Directions