After living in Los Angeles for 26 years, I finally got to try the famous Phillipe's restaurant in Downtown. This restaurant has been around for ages and has been named the best original french dip sandwich. They serve lamb, beef or turkey french dip sandwiches that can be double dipped in a savory au jus. The lines can go out the door but it's all worth the wait. I can always go for a tasty roast beef French dip sandwich but since I can't always go to Phillipe's, I decided to make my own at home. It may not be the original French dip sandwich but this recipe sure delivers!

Recipe

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Roast Beef French Dip Sandwich

Total Time2 hours hrs 30 minutes mins

Course: Main Course

Cuisine: American

Keyword: sandwich

Servings: 4

Author: Christine Ma

Ingredients

Roast beef

• 2 lb beef roast sirloin roast, rump roast, rib eye roast, or chuck roast
• 3 cloves garlic minced
• 1 teaspoon rosemary chopped fine
• 1 teaspoon oregano chopped fine
• 1 teaspoon thyme chopped fine
• salt and pepper
• 2 tablespoon olive oil divided

Spicy mustard

• 2 tablespoon dijon mustard
• 2 tablespoon spicy brown mustard
• 2 tablespoon creamed horseradish

Au jus

• 2 tablespoon butter
• 1 shallot chopped
• 1 tablespoon all-purpose flour
• 2 tablespoon dry sherry
• 14 ounces beef broth
• 4 sandwich rolls toasted

Instructions

• Preheat oven to 325 degrees F.
• Rub roast with 3 cloves minced garlic, 1 teaspoon rosemary, 1 teaspoon oregano, 1 teaspoon thyme, and 1 tablespoon oil. Season with a generous sprinkling of salt and pepper. Let sit for 30 minutes.
• Heat 1 tablespoon oil in saute pan over high heat. Add roast and sear on all sides. Place on roasting rack and roast in the oven until internal temperature is 140 degrees F, about 1 hour 45 minutes - 2 hours. Remove from oven and let rest 20 minutes before slicing. Reserve the juices and set them aside.
• Prepare the spicy mustard. Mix 2 tablespoon dijon mustard with 2 tablespoon spicy brown mustard and 2 tablespoon creamed horseradish. Set aside.
• Meanwhile, make the au jus. Melt 2 tablespoon butter in a shallow skillet over medium heat. Add the minced shallots and saute for 2 minutes, stirring frequently. Whisk in 1 tablespoon flour and cook for 1 minute. Add 2 tablespoon sherry and bring to a boil, cooking out the alcohol for about 1 minute. Add 14 ounces of beef broth and the reserved beef juices. Bring to a simmer over low heat and cook for 5 minutes.
• Dip the rolls one at a time in the au jus. Stuff with thinly sliced roast beef. Serve with spicy mustard on the side.

**Helpful tips and common mistakes

Roast beef french dip sandwiches are made from two ingredients: the beef and the bread. Given that it's such a simple sandwich, it's best to use top-notch ingredients. When choosing the beef for the sandwich, choose the meat with marbling for the best results. I love a rib-eye but to stick to my budget, I went with a chuck roast instead.

When cooking your roast, check the internal temperature halfway through the cooking process. If your particular cut is thinner than other roasts, it can be done sooner. Let the roast rest for at least 10 minutes to let the juices circulate.

Now comes the tricky part, slicing the beef. To make a true roast beef french dip sandwich, you want to slice the beef as thin as you can. A slicer would come in handy right about now, but since I'm no fancy sandwich maker, I'll have to rely on my skills.

While the roast is cooking, prepare the spicy mustard and au jus. I wanted my spicy mustard to scream spicy so I added a good amount of horseradish. Although the sandwich is a signature item on Phillipe's menu, it's also their spicy mustard that pleases the crowd. You can say that it's the American version of wasabi - yes, it's that spicy.

Dip your rolls, or double-dip them in the prepared au jus and stuff them with a good amount of roast beef. Serve with mustard on the side and you have yourself a roast beef french dip sandwich. Sure there's a lot of work that goes behind this sandwich, but you can almost call it art to produce such a great meal. A classic sandwich that can never go wrong.

For more sandwich inspiration check out this ribeye sandwich with jalapeno pesto and white cheese sauce!