Easy Slow Cooker French Dip Sandwiches
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My recipe for Easy Slow Cooker French Dip Sandwiches gives you juicy, melt-in-your-mouth beef simmered in deeply flavorful, full-bodied au jus. I use a savory stock with onion, garlic, and soup mix that cooks down and clings to the sandwiches with every dip. With my method you get the richness of stovetop braising with the ease of a slow cooker, exactly the way a French dip should be.

Best Slow Cooker French Dip Sandwiches
I love making these Slow Cooker French Dip Sandwiches when I need dinner to work for me instead of the other way around. The slow cooker keeps the beef tender while the broth slowly develops depth and richness. By the time the roast is ready to slice, it has created a rich au jus that pairs perfectly with provolone and toasted rolls. With my easy recipe the ingredients are simple, the steps hands‑off, and results that are consistently delicious.
Why My French Dip Sandwiches are the Best
- Rich, concentrated au jus – Many slow cooker versions lack flavor but my au jus reduces as it cooks and develops a bold flavor, perfect for dipping.
- Right balance of flavor – Onion and garlic can overpower the other flavors but I’ve dialed in the measurements to ensure the flavors complement the beef and provolone.
- Weeknight easy – You get a French dip sandwich that’s better than restaurant-quality without babysitting a stovetop or oven version.
Ingredients Needed To Make Easy Slow Cooker French Dip Sandwiches

Below is a list of the ingredients you’ll need to make this recipe. Scroll down to the full recipe card for the specific amounts.
- Beef stock – Forms the base of the au jus and gives it deep beef flavor as it cooks.
- Worcestershire sauce – Adds savory flavor that reinforces the richness of the broth.
- Salt – Helps balance the broth and sharpen the overall flavor.
- Pepper – Provides a warm background note without overpowering the beef.
- Beefy Onion Soup Mix – Builds concentrated beef flavor.
- Onion – Cooks down into the broth and adds natural sweetness and body.
- Garlic – Infuses flavor slowly and gives every bite a savory backbone.
- Rump roast – Slow cooks into tender slices that soak up the broth beautifully.
- Sub rolls – Toasted to stay crisp so they hold up to dipping without going soggy.
- Butter – Helps toast the rolls to a golden finish and adds flavor.
- Garlic powder – Seasons the rolls for extra flavor before the cheese goes on.
- Provolone cheese – Melts smoothly over the meat and complements the au jus without overpowering it.
Substitutions or Variations
- Not a fan of provolone? You can swap it for Swiss or mozzarella.
- Prefer shredded beef? Cook the roast whole, pull it apart, and stir it back into the au jus.
- Out of rump roast? No problem. Chuck roast or top round works well too.
- Like a little heat? Stir in crushed red pepper or add sliced pepperoncini to the sandwiches.
- Want it cheesier? Add an extra slice of provolone and broil a few seconds longer.
How To Make My Classic French Dip Recipe
Here are my step-by-step instructions so you can make this recipe with ease. For the full, printable recipe with amounts and temperatures, scroll down to the recipe card below.


- Pour the beef stock, Worcestershire sauce, salt, pepper, and onion soup mix into the bottom of the slow cooker. Stir to combine.
- Thinly slice the onion and mince the garlic. Add both to the slow cooker.


- Place the rump roast in the slow cooker. Cook on low for 8 hours.
- Once the meat is fully cooked, turn the slow cooker to warm. Remove the meat, thinly slice it, and return it to the broth until ready to serve.
- Preheat the oven to broil and adjust the rack to the top third of the oven.


- Split and butter each roll. Sprinkle with garlic powder and top with 2 slices of provolone. Place on a baking sheet and broil until the bread is toasted and cheese is melted, about 3-4 minutes.
- Assemble the sandwiches by placing a generous portion of meat and onions on each roll. Add some of the au jus to a small bowl to serve alongside the sandwich for dipping.

- Slice the rump roast against the grain – for the most tender texture.
- Let the meat rest in the warm broth after slicing – for maximum flavor.
- Toast the rolls until lightly browned – so they hold up under the juicy beef.
- Don’t walk away from the broiler – because the rolls can go from toasted to burned in a matter of seconds.
FAQs
You can easily make this recipe ahead of time by cooking the beef the day before and storing it in the broth. Then, reheat it in the slow cooker or in a pot until warm.
Technically yes, but the texture isn’t the same. Low and slow gives you tender beef and better depth in the au jus.
For this French dip recipe, the best meat is chuck or rump roast.
The name comes from the style of serving, not the origin. The sandwich is traditionally dipped into au jus, which is French for “with juice.” The technique of dipping the sandwich in its own cooking juices gave it the name French Dip, even though the sandwich itself was created in Los Angeles, not France.
Storage Instructions
- Refrigerate – Store the sliced beef in the au jus for up to four days so it stays moist and flavorful.
- Freeze – Freeze the beef and au jus together for up to three months. Thaw in the refrigerator overnight before reheating.
- Reheat – Warm gently in a saucepan or slow cooker in the broth, not on its own, to keep the beef tender and juicy.
More Slow Cooker Dinner Recipes
- Slow Cooker Minestrone Soup
- Slow Cooker Southwest Chicken
- Crockpot Smokies
- Slow Cooker Chicken Teriyaki
- Crockpot Beef Stew
- Simple Slow Cooker Chili
- Crockpot Meatballs
- Slow Cooker Southwest Chicken
- Crockpot Chicken Cacciatore
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French Dip Sandwiches
Equipment
- 7 – quart slow cooker
Ingredients
- 4 cups low sodium beef stock
- 2 teaspoons Worcestershire sauce
- 1/2 teaspoon salt
- ½ teaspoon pepper
- 2.2 ounces Beefy Onion Soup Mix 2 envelopes
- 1 large onion
- 3 cloves garlic
- 4 pounds rump roast
- 8 sub rolls
- 1 stick butter softened
- 2 Tablespoons garlic powder
- 16 slices provolone cheese
Instructions
- Pour the beef stock, Worcestershire sauce, salt, pepper, and onion soup mix into the bottom of the slow cooker. Stir to combine.4 cups low sodium beef stock, 2 teaspoons Worcestershire sauce, 1/2 teaspoon salt, ½ teaspoon pepper, 2.2 ounces Beefy Onion Soup Mix
- Thinly slice the onion and mince the garlic. Add both to the slow cooker.1 large onion, 3 cloves garlic
- Place the rump roast in the slow cooker. Cook on low for 8 hours.4 pounds rump roast
- Once the meat is fully cooked, turn the slow cooker to warm. Remove the meat, thinly slice it, and return it to the broth until ready to serve.
- Preheat the oven to broil and adjust the rack to the top third of the oven.
- Split and butter each roll. Sprinkle with garlic powder and top with 2 slices of provolone. Place on a baking sheet and broil until the bread is toasted and cheese is melted, about 3-4 minutes.8 sub rolls, 1 stick butter, 2 Tablespoons garlic powder, 16 slices provolone cheese
- Assemble the sandwiches by placing a generous portion of meat and onions on each roll.
- Ladle a small cup of the au jus (broth) to serve alongside for dipping.
Notes
Nutrition
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