Easy Slow Cooker French Dip with Beer and Onion Soup
A hands-off French dip sandwich featuring tender, slow-cooked rump roast in a savory beer and onion soup broth. The meat becomes fork-tender after 7 hours of low cooking, while the resulting jus makes an incredible dipping sauce. Perfect for busy weeknights or feeding a crowd, these hearty sandwiches deliver maximum flavor with minimal effort. The combination of beer and French onion soup creates a rich, complex broth that infuses the beef with deep, savory notes.
Ingredients
- 4 pounds rump roastchuck roast1:1
similar cooking time and texture
- 12 fluid ounce beer, canned or bottled
- 10 ½ ounce condensed French onion soup, canned
- 10 ½ ounce beef broth, canned
- 9 French rollshoagie rolls1:1
different texture but works well
- 2 tablespoons butter
Instructions
- 1
Gather all ingredients
- 2
Trim excess fat from rump roast and place in slow cooker
- 3
Pour in beer, onion soup, and beef broth, cover and cook on Low setting for 7 hours
- 4
Preheat oven to 350 degrees F
- 5
Split French rolls and arrange on baking sheet, spread with butter
- 6
Warm rolls in preheated oven for 10 minutes until heated through
- 7
Remove rump roast from slow cooker and thinly slice on diagonal
- 8
Pile sliced beef onto heated rolls and serve with sauce for dipping
Tips
Save the cooking liquid from the slow cooker as it makes an excellent au jus for dipping the sandwiches.
For extra flavor, sear the roast in a hot pan before adding to the slow cooker to develop a deeper crust.
Slice the meat against the grain for the most tender results when assembling sandwiches.
Good to Know
Refrigerate leftover beef and jus separately for up to 3 days
Cook beef up to 2 days ahead, slice and reheat gently in reserved jus
Serve immediately while rolls are warm with hot au jus on the side
Common Mistakes
Don't overcook the rolls or they'll become too crispy to hold the juicy beef
Slice meat against the grain to avoid tough, chewy sandwiches
Substitutions
Dairy-Free Swaps
General Alternatives
different texture but works well
FAQ
Can I cook this on high instead of low?
Yes, cook on high for 3-4 hours instead of 7 hours on low, but low heat produces more tender results.
What if I don't have French onion soup?
Use onion soup mix with water or substitute with additional beef broth plus sauteed onions for similar flavor.
How long will leftovers keep?
Refrigerate beef and jus separately for up to 3 days or freeze for up to 3 months.