This is my go-to “set it and forget it” special-occasion dinner, and the one my mom requests every year for her birthday. It’s the simplest French dip you’ll ever make: just a roast, a good onion soup mix, and beef broth. The slow cooker does all the work, turning the meat unbelievably tender so it practically falls apart when you touch it, and the cooking liquid becomes a rich, dark brown au jus that tastes like you fussed over it all day. It’s very Midwest weeknight-friendly but feels fancy enough for a celebration.
Pile the juicy shredded beef high on soft hoagie rolls or sub buns and serve with warm bowls of the au jus on the side for dipping. These sandwiches are great with a simple green salad, coleslaw, or roasted veggies if you want to keep things lighter. For a more classic deli-style spread, add potato chips, pickles, and maybe a bowl of fruit on the table. If you’re serving a crowd, keep the meat and au jus on warm in the slow cooker and let everyone build their own sandwich as they go.
Slow Cooker 3-Ingredient French Dip Sandwiches
Servings: 6

Ingredients
3 to 4 pounds beef chuck roast, excess fat trimmed
2 (1-ounce) packets dry onion soup mix
3 cups low-sodium beef broth
6 soft hoagie rolls or sub buns, for serving (optional but recommended)
Directions
Place the beef chuck roast in the bottom of a large slow cooker (5- to 7-quart works well). If one side of the roast is fattier, place that side facing up so the fat can baste the meat as it cooks.
Sprinkle the dry onion soup mix evenly over the top and sides of the roast, pressing it in lightly so it sticks to the meat.
Pour the beef broth around the sides of the roast, being careful not to wash off too much of the soup mix from the top. The liquid should come at least halfway up the sides of the meat.
Cover the slow cooker with the lid and cook on LOW for 8 to 10 hours, or on HIGH for 4 to 5 hours, until the beef is very tender and easily shreds apart with a fork. For the most fall-apart, melt-in-your-mouth texture, the LOW and slow option is best.
Once the beef is done, carefully transfer the roast to a large cutting board or a wide bowl, leaving the cooking liquid (au jus) in the slow cooker. Skim off any large pools of fat from the surface of the au jus with a spoon, if desired.
Use two forks to shred the beef into bite-sized pieces, discarding any large pieces of fat. The meat should fall apart easily; if it doesn’t, return it to the slow cooker and continue cooking for another 30 to 60 minutes.
Return the shredded beef to the slow cooker and stir it into the hot au jus. Let it sit on WARM for at least 10 to 15 minutes so the meat can soak up even more flavor. Taste the au jus and adjust with a little extra broth or a splash of water if it’s too salty or concentrated.
To serve, lightly warm or toast the hoagie rolls if you like. Use tongs to pile the shredded beef high onto each roll, letting any excess liquid drip back into the slow cooker. Spoon some of the rich, dark brown au jus into small bowls or ramekins for dipping alongside each sandwich.
For the best “caramelized edges” look like in the photo, you can quickly broil the assembled sandwiches (without the au jus) on a baking sheet for 2 to 3 minutes to crisp the edges of the meat and the rolls before serving. Watch closely so they don’t burn.
Variations & Tips
To keep this as a true 3-ingredient base, the main recipe uses only beef chuck roast, dry onion soup mix, and beef broth; the hoagie rolls are simply for serving.
If you want to dress things up, you can add sliced provolone or Swiss cheese on top of the meat and broil until melted for a cheesier French dip. Caramelized onions or sautéed mushrooms are great add-ons if you have extra time, but they’re totally optional.
For a slightly leaner option, you can use a bottom round roast instead of chuck, though it may be a bit less rich and juicy; just be sure not to undercook it or it will be tough. If you’re watching sodium, choose low-sodium broth and consider using only 1 1/2 packets of onion soup mix, then taste and adjust with extra broth or water as needed.
Leftovers keep well in the fridge for up to 4 days; store the meat in its au jus to keep it moist, and reheat gently on the stove or in the microwave until steaming hot. For food safety, always cook the beef to at least 145°F internally (it will usually be much higher by the time it’s fall-apart tender) and keep the slow cooker on WARM (above 140°F) if you’re serving over several hours. Cool leftovers promptly and refrigerate within 2 hours of cooking. You can also freeze the shredded beef in its liquid for up to 3 months for an easy future dinner.