Slow Cooker French Dip Sandwiches with Onion Jus Step-by-step instructions

Before you start

Ensure the slow cooker is clean and the surface is clear. Have the beef chuck roast ready, ideally at room temperature for no more than 30 minutes before placing it into the cooker.

Verify that the hoagie rolls are fresh and ready for toasting, and have a pair of sturdy forks available for the shredding process. If the beef was stored in the refrigerator, it is fine to place it directly into the slow cooker, as the long cooking time will safely bring it to the proper internal temperature.

Instructions

Seasoning and Initial Setup

1. 1Prepare the slow cooker
   Place the beef chuck roast into the bottom of the slow cooker insert. Ensure the slow cooker is placed on a stable, heat-resistant surface away from any water sources.
   Look for The beef should sit flat in the bottom of the vessel.
   Tip Trimming excess fat from the roast before cooking can result in a cleaner, less greasy finished sauce.
2. 2Add seasoning and liquid
   Empty the packet of onion soup mix over the beef. Sprinkle the au jus seasoning mix evenly across the top of the roast. Pour the beef broth over the seasonings to start the base.
   Look for The liquid should partially submerge the beef roast.
   Tip Pouring the broth slowly helps keep the seasoning packets in place on the meat.

The roast sits snugly in the slow cooker, coated with the onion and au jus seasoning packets. The beef broth has been poured around the base of the meat, creating a dark, aromatic pool that signals the start of the braising process. Ensure the lid is seated properly to seal in the moisture and prevent evaporation.

Slow Cooking Period

3. 3Slow cook the beef
   Cover the slow cooker with its lid. Cook on the low setting for 8 hours or until the meat is fork-tender. Once finished, ensure the internal temperature of the beef reaches at least 145°F (63°C) and let the meat rest at least 3 minutes before shredding.
   Look for The meat should pull apart easily with a fork.
   Safe temperature 145°F (63°C) internal temperature (steaks, chops and roasts)
   Tip Avoid lifting the lid unnecessarily during the cooking process to maintain a consistent internal temperature.

The beef has cooked for the full duration, and the kitchen should be filled with a savory, roasted aroma. The meat looks dark and tender, and the cooking liquid has transformed into a rich, flavorful jus. Check that the meat is soft enough to yield easily to a fork before proceeding to the final assembly.

Assembly and Service

4. 4Assemble the sandwiches
   Remove the beef from the slow cooker and shred it using two forks. Toast the hoagie rolls until golden. Pile the shredded beef onto the rolls, top with a slice of provolone, and serve with a side of the cooking jus.
   Look for The cheese should be visibly melted over the hot shredded beef.
   Tip Briefly broiling the assembled sandwich for one minute can help achieve a perfectly melted cheese topping.

The shredded beef is piled high on toasted rolls, and the provolone is melted to a soft, gooey consistency. The individual portions are served with a side of the warm, concentrated jus.

The final assembly should look cohesive, with the meat and cheese holding together well within the toasted bread, ready to be dipped and enjoyed.

Common mistakes

A common error is using a cut of beef that is too lean, which can result in a dry or stringy texture that does not hold the moisture of the jus. Another mistake is failing to toast the hoagie rolls, which can lead to a soggy sandwich that loses its structure immediately upon dipping.

Lastly, adding too much extra liquid beyond the specified amount can dilute the savory intensity of the au jus; stick to the recommended proportions for the most balanced flavor profile.

How to tell it’s done

The beef is done when it reaches an internal temperature of at least 145°F (63°C). At this stage, the meat should be exceptionally tender, allowing it to be easily pulled into shreds using two forks.

When serving, the beef should be steaming hot and the provolone cheese should be fully melted across the surface, indicating the sandwich is ready for consumption. Let the meat rest for at least 10 minutes after shredding to allow the juices to redistribute for maximum flavor.

• Steaks, chops and roasts: 145°F (63°C) in the thickest part, then a 3-minute rest