Slow Cooker French Dip Sandwiches with Onion Jus Tips, FAQ & printable recipe

Tips for success

For a deeper flavor in the au jus, consider searing the roast in a hot pan with a small amount of oil before placing it in the slow cooker. This step adds a layer of caramelized flavor that enhances the richness of the final dipping sauce. Ensure the pan is properly deglazed with a splash of broth to capture all the browned bits.

If the au jus seems too thin, it can be reduced in a small saucepan over medium-high heat for several minutes after the beef has been removed.

This concentrates the flavors and creates a more syrupy consistency that adheres better to the bread. Adjust the seasoning with a pinch of salt or pepper only after the reduction, as the saltiness will intensify as the liquid evaporates.

Variations

• Caramelized Onion Dip: Add two thinly sliced onions to the slow cooker along with the beef. They will soften and caramelize during the long cooking time, providing a sweet, jammy texture that complements the salty au jus.
• Spicy Horseradish Kick: Stir a tablespoon of prepared horseradish into the au jus just before serving. This adds a sharp, pungent heat that cuts through the richness of the beef and melted provolone.

Storage and make-ahead

Fridge

Store in an airtight container for up to 3 days.

Freezer

Freeze the shredded beef in its juices for up to 2 months.

Reheat

Thaw in the refrigerator overnight and reheat gently on the stovetop until steaming.

Store any leftover shredded beef in an airtight container, submerged in a portion of the cooking liquid to keep the meat moist. This prevents it from drying out in the refrigerator.

Keep the bread separate until you are ready to assemble and serve the sandwiches to maintain the best texture. Consume the leftovers within three days for the best quality.

The beef can be cooked in advance and stored in the refrigerator, which often allows the flavors to meld further. When ready to serve, simply reheat the shredded beef in the cooking liquid on the stovetop or in the slow cooker until hot.

Assemble the sandwiches fresh by toasting the rolls and melting the cheese at the last minute to ensure the best texture.

Serving ideas

Serve these sandwiches warm, with the au jus provided in small, individual bowls for each guest. This allows for a controlled dipping process, ensuring each bite maintains the desired ratio of bread to beef and sauce. A side of pickles or a light green salad can provide a refreshing contrast to the richness of the beef and melted cheese.

For a larger gathering, set up a sandwich bar where guests can assemble their own portions. Keep the shredded beef warm in the slow cooker on a low setting and provide fresh rolls, cheese slices, and bowls of hot au jus.

This interactive approach makes for a casual and enjoyable dining experience that keeps the meat at the perfect serving temperature throughout the meal.

Frequently asked questions

Recipe card

Slow Cooker French Dip Sandwiches with Onion Jus

Prep 5 minCook 8 hRest 10 minTotal 8 h 15 minServes 6

Ingredients

• 3 lb beef chuck roast
• 1 packet onion soup mix
• 1 packet au jus seasoning mix
• 3 cups beef broth
• 6 hoagie rolls, toasted
• 6 slices provolone cheese

Instructions

1. 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.
2. 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.
3. 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.
4. 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.

Contains: gluten, milk

Estimated nutrition per serving

Calories

620

Protein

42 g

Carbohydrates

35 g

Fat

34 g

Fiber

2 g

Sugar

4 g

Sodium

1450 mg

Automatic estimate from the ingredient list, not laboratory-verified.