Slow Cooker French Dip Sandwich Au Jus

by Erin

This slow cooker French dip sandwich is easy to make at home and of course has to be served au jus. Is it really a French dip without it?

Slow Cooker French Dip Sandwich with Au Jus
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I had been craving a French dip sandwich for a very, very long time. And when I found this recipe using a slow cooker I knew it was the one for me. Except for the fact that after working in the lab all day and then going to the gym immediately after, 6-7 hours of cooking time has long been passed. So how do I solve this problem? Resourcefulness to the rescue!

Slow Cooker French Dip Sandwich

This recipe is super easy and the end result is quite rewarding. Throw a bunch of stuff in a pot before work, plug it into a plug timer to turn on at noon, and 6-7 hours later I have something tasty for dinner, ready and waiting for me when I get home! And my craving was finally fulfilled by this delicious sandwich.

Sure I could buy a newer slow cooker with the programmable timer functionality built in, but this quite literally works just as well.

Homemade Slow Cooker French Dip Sandwich with Au Jus

Welcome to our #NationalSlowCookerMonth Celebration! 

January is National Slow Cooker Month and this week we are celebrating all things slow cooker! We have delicious recipes from across the country to fill your meal plans with delicious slow cooker recipes!

Post updated 1/9/22, photos above and below are the originals.

Slow Cooker French Dip Sandwich with Au Jus


Yield: 6-8 servings Prep Time: Cooking Time:
Nutrition facts: 200 calories 20 grams fat


  • 1 medium yellow onion
  • 3/4 cup beef broth/stock
  • 1/4 cup reduced sodium soy sauce
  • 1/2 cup water
  • 1 Tbsp Worcestershire sauce
  • 1 Tbsp creole mustard
  • 2 cloves garlic, roughly chopped
  • ~3lb chuck roast
  • Salt & pepper
  • 6-8 sandwich rolls, split
  • 6-8 slices of Swiss cheese


  1. Slice the onion into ~1/4-inch rounds. Keeping the rounds intact, place them in the bottom of a slow cooker.
  2. Add beef broth, soy sauce, Worcestershire sauce, mustard, and garlic to the crockpot.
  3. Salt and pepper both sides of the roast and place on top of the onions.
  4. Cook on low 6-7 hours until beef is fall-apart tender.
  5. Transfer the roast to a cutting board and thinly slice.
  6. Remove the onions and set aside. I strain the juice into a large fat separator measuring cup and get rid of the oil that collects on top.
  7. Switch the slow cooker to warm, and return the roast, juice, and onions to the slow cooker for up to an hour before serving.
  8. Heat the broiler. Place the split sandwich rolls on a lined baking sheet and toast for 1 minute or just until the bread begins to brown.
  9. Remove the tops from the pan. Lay the beef on the bottom of the rolls and top with cheese.
  10. Return to the oven just until cheese is melted. Top with sandwich halves and serve with small bowls of jus.
Did You Make This Recipe?
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Source: Confections of a Foodie Bride

Did you make this recipe? I want to see! Tag @THESPIFFYCOOKIE on Instagram and hashtag it #THESPIFFYCOOKIE

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Give me all the au jus! These sandwiches were fantastic!

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Kita August 12, 2011 - 3:20 pm

Oooh yeah, we were on the same page for this one ;) I’ve got some French Dips going up soon (ok, not soon, but you know what I mean)… :D

spiffycookie August 12, 2011 - 3:27 pm

It’s the “summer’s not quite over but I’m ready for fall” sandwich

Cassie (Bake Your Day) August 11, 2011 - 8:55 pm

French dips are my favorite. I have bookmared this one, I love crockpot recipes! Your seasonings sound wonderful!

spiffycookie August 12, 2011 - 9:39 am

Thanks! The recipe is actually thanks to The Foodie Bride.

janet@fromcupcakestocaviar August 11, 2011 - 5:11 pm

Looks fantastic Erin! I do love hot sandwiches….

spiffycookie August 12, 2011 - 9:38 am

Hot sandwiches are the best

Tracey August 11, 2011 - 1:32 pm

I’ve never had a french dip sandwich, but holy moly do I ever want one now! That looks amazing!!

spiffycookie August 11, 2011 - 1:40 pm

Never!? I actually had one for the first time a year ago and fell instantly in love.

Stefanie August 10, 2011 - 10:37 pm

This is another one that looks great!! Gotta love the crock pot recipes :)

Erin @ Dinners, Dishes and Desserts August 10, 2011 - 6:10 pm

I love a good french dip! Dipping in the au jus is just so yummy!

Shawnda August 10, 2011 - 3:00 pm

Glad you liked it!

The Elegant Eggplant August 10, 2011 - 11:44 am

This looks JUST PERFECT. Delish!

Elle August 10, 2011 - 10:36 am

Oh man, that looks incredible! I really need to get another slow cooker. I bought one when we moved into this house a few years ago, and hardly ever used it, so I gave it to my sister in law. Must buy new one so I can try this!

spiffycookie August 10, 2011 - 10:37 am

Seems like everyone I know needs a slow cooker, because they recently got rid of theirs and didn’t realize how great of an appliance it is!


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