Ina's 5- Filet of Beef with Mustard Mayo Horseradish Sauce

By Food Network · 90 min

Ingredients

Instructions

1. Preheat the oven to 275°F (135°C). Line a sheet pan with aluminum foil.
2. Pat the whole tenderloin dry and brush it all over, top and bottom, with the melted butter. Season all over with 4 teaspoons salt and 2 teaspoons pepper.
3. Place the tenderloin on the sheet pan and roast for 1 to 1 1/4 hours, until an instant-read thermometer in the thickest end reads 130°F (54°C) for medium rare.
4. Remove from the oven, cover tightly with foil and rest at room temperature for 15 minutes. Then remove the foil.
5. Meanwhile, whisk the mayonnaise, sour cream, both mustards, horseradish and 1/4 teaspoon salt in a small bowl. Refrigerate until serving.
6. Remove the strings, slice the filet between 1/4 and 1/2 inch thick, sprinkle with salt and arrange on a platter garnished with parsley. Serve warm, at room temperature or cold, with the sauce on the side.

Summarized from Food Network's video. Watch it for the details.

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