Slow Roasted Filet Of Beef With Basil Parmesan Mayonnaise Barefoot Contessa Recipes

Steps:

• Preheat the oven to 275 degrees F. Line a sheet pan with aluminum foil.
• Dry the entire tenderloin with paper towels and brush it all over (top and bottom) with the butter. Sprinkle it all over with 4 teaspoons of salt and 2 teaspoons of pepper. It will seem like a lot but trust me, it's important.
• Place the filet on the sheet pan and roast it for 1 to 1 1/4 hours, until an instant-read thermometer inserted into the end of the beef registers 130 degrees F for medium rare. Remove from the oven, cover tightly with aluminum foil, and allow to rest at room temperature for 15 minutes. Discard the foil and allow to sit at room temperature.
• Meanwhile, place the shallots, 3 tablespoons of tarragon, the wine, and vinegar in a small saucepan and bring it to a boil over medium-high heat. Boil for 5 minutes, until only 1 tablespoon of liquid remains. Set aside to cool for 15 minutes.
• Place the egg yolks, lemon juice, mustard, 2 1/2 teaspoons salt, and 1 teaspoon pepper in the bowl of a food processor fitted with the steel blade and process for 10 seconds. With the processor running, slowly pour the vegetable oil and olive oil through the feed tube to make a thick emulsion. Add the shallot reduction and the remaining tablespoon of tarragon leaves and pulse to combine. Refrigerate until ready to serve.
• Slice the filet of beef between 1/4 and 1/2 inch thick, sprinkle with salt, and serve warm, at room temperature, or cold with the béarnaise mayonnaise on the side.

Steps:

• Place the egg yolks, lemon juice, garlic, salt and pepper in the bowl of a food processor fitted with the steel blade and process until smooth. With the processor running, slowly pour the oils into the bowl through the feed tube and process until emulsified. Add the basil and continue processing until finely pureed. Store the mayonnaise in the refrigerator.
• Food Network Kitchens suggest caution in consuming raw and lightly-cooked eggs due to the risk of Salmonella or other food-borne illness. To reduce this risk, we recommend you use only fresh, properly-refrigerated, clean, grade A or AA eggs with intact shells, and avoid contact between the yolks or whites and the shell. For recipes that call for eggs that are raw or undercooked when the dish is served use shell eggs that have been treated to destroy Salmonella, by pasteurization or another approved method.

Steps:

• Preheat the oven to 275 degrees. Use an oven thermometer to be sure your oven temperature is accurate.
• Place the filet on a sheet pan and pat it dry (all over) with paper towels. Brush the filet all over with the oil, reserving about half a tablespoon. Sprinkle it all over with the salt and pepper (it will seem like a lot but believe me, it makes a difference). Place the tarragon branches around the beef, tying them in 4 or 5 places with kitchen twine to keep them in place, and then brush the tarragon with the reserved oil.
• Roast the filet of beef for 1 1/4 to 1 1/2 hours, until the temperature registers 125 degrees in the center for rare and 135 degrees for medium-rare. Cover the filet with aluminum foil and allow to rest for 20 minutes. Slice thickly and serve warm or at room temperature with Basil Parmesan Mayonnaise.
• Place the egg yolks, lemon juice, Parmesan, mustard, basil, garlic, 1 tablespoon salt, and 1 teaspoon pepper in a food processor fitted with the steel blade. Process for 20 seconds, until smooth. Combine the vegetable oil and olive oil in a 2-cup liquid measuring cup. With the processor running, slowly pour the oil mixture through the feed tube to make a thick emulsion. Taste for seasonings -- the mayonnaise is a sauce so it should be highly seasoned. Store in the refrigerator until ready to use; it will keep for up to a week.

Steps:

• Preheat the oven to 500 degrees F.
• Place the beef on a baking sheet and pat the outside dry with a paper towel. Spread the butter on with your hands. Sprinkle evenly with the salt and pepper. Roast in the oven for exactly 22 minutes for rare and 25 minutes for medium-rare.
• Remove the beef from the oven, cover it tightly with aluminum foil, and allow it to rest at room temperature for 20 minutes. Remove the strings and slice the filet thickly.