Prime Rib French Dip Recipe
horseradish sauce, beef au jus, toasted hoagie roll
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Ingredients
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For the Prime Rib
For the Horseradish Sauce
For the Beef Au Jus
For the Sandwich
Method
Prepare the Prime Rib
- 1
Season and Roast
Preheat your oven to 450°F (232°C). Rub the prime rib roast with salt, black pepper, garlic powder, and onion powder. Place the roast in a roasting pan, fat side up. Roast in the preheated oven for 20 minutes.
- 2
Lower the Temperature
After 20 minutes, reduce the oven temperature to 325°F (163°C) and continue roasting for about 1.5 to 2 hours, or until the internal temperature reaches 130°F (54°C) for medium-rare. Remove from the oven and allow to rest for at least 20 minutes before slicing.
Prepare the Horseradish Sauce
- 3
Mix the Sauce
In a medium bowl, combine the prepared horseradish, sour cream, Dijon mustard, and lemon juice. Stir until well blended. Adjust seasoning with additional horseradish if desired. Refrigerate until ready to use.
Prepare the Beef Au Jus
- 4
Assemble the Sandwich
- 5
Toast the Hoagie Rolls
Preheat your broiler. Cut the hoagie rolls open and place them under the broiler for 1-2 minutes until they are lightly toasted.
- 6
Slice the Prime Rib
Thinly slice the rested prime rib roast against the grain.
- 7
Build the Sandwich
Layer the thinly sliced prime rib on the toasted hoagie rolls, add a slice of Swiss cheese, and serve with a side of warm beef au jus for dipping. Top with horseradish sauce as desired.