This 3-ingredient slow cooker French dip is my answer to those June days when I want a hearty, comforting dinner but also want the whole thing handled hours ahead of time. Classic French dip sandwiches likely trace back to early 20th-century Los Angeles, where thin-sliced roast beef met a savory dipping jus. Here, we take that same idea and strip it down to its essentials: a raw beef sirloin roast, a robust beef broth, and a concentrated onion soup mix. Everything simmers low and slow until the meat is succulent and fibrous, pulling apart into tender shreds that bathe in a dark, glistening, umami-rich broth. It’s truly a zero-fuss way to get maximum payoff at the end of the day.
Pile the shredded beef onto lightly toasted hoagie rolls or baguette sections and ladle the hot cooking liquid into small bowls for dipping. A slice of provolone or Swiss melts beautifully over the warm meat if you’d like a touch of richness. I like to keep sides simple: a crisp green salad with a bright vinaigrette, roasted green beans, or a tray of oven fries. A light beer, a red table wine, or even iced tea works well alongside this deeply savory, broth-forward sandwich.
3-Ingredient Slow Cooker French DipServings: 6
Ingredients
3 to 3 1/2 pounds beef sirloin roast, trimmed of excess surface fat
3 cups low-sodium beef broth
1 (1-ounce) packet dry onion soup mix
Directions
Place the beef sirloin roast in the bottom of a slow cooker, fat side up if there is a fat cap. This allows the fat to baste the meat as it cooks, keeping it moist and flavorful.
In a large measuring cup or bowl, whisk together the beef broth and dry onion soup mix until the soup mix is mostly dissolved and no large clumps remain.
Pour the onion-broth mixture evenly over and around the roast in the slow cooker, making sure some of it runs underneath so the meat is surrounded by liquid.
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 pulls apart with a fork. The broth will darken and become rich and aromatic as it cooks.
Once the roast is fork-tender, use tongs to transfer it to a cutting board or large shallow bowl. Let it rest for about 5 minutes, then use two forks to shred the meat into bite-sized pieces, discarding any large pockets of fat.
Skim excess fat from the surface of the cooking liquid in the slow cooker with a spoon. Return the shredded beef to the slow cooker, stirring it into the hot broth so every strand is coated and glistening.
Taste a bit of the meat and broth; if desired, you can season lightly with salt, but many onion soup mixes are salty enough that no additional seasoning is needed. Keep the beef on the WARM setting until you’re ready to serve, letting it sit in the broth so it stays juicy.
To serve, use tongs or a slotted spoon to heap the shredded beef onto split hoagie rolls or baguette slices, then ladle the hot broth into small bowls on the side for dipping.
Variations & Tips
For a slightly richer flavor, you can sear the sirloin roast in a hot skillet with a thin film of oil before adding it to the slow cooker, but it’s completely optional and not necessary for tenderness. If you prefer a more pronounced beef flavor and a darker jus, substitute 1 cup of the beef broth with a very concentrated homemade stock or a cup of broth simmered down by half. To lean the dish out a bit, trim the roast well before cooking and thoroughly skim the fat from the broth before returning the shredded meat. If you like a hint of sweetness, stir 1 to 2 teaspoons of brown sugar into the broth and onion soup mix before pouring it over the roast (this won’t change the 3-ingredient count if you treat it as optional). For a pepper-forward version, crack black pepper generously over the roast before cooking. Food safety tips: Always start with a fully thawed beef roast; cooking from frozen in a slow cooker can keep the meat in the temperature “danger zone” (40°F to 140°F) for too long. Keep the lid on the slow cooker during cooking to maintain a safe, steady temperature. Use a meat thermometer if you like; the internal temperature of the roast should reach at least 145°F, though for shredding you’ll typically be closer to 190°F–200°F. Refrigerate leftovers within 2 hours, storing the beef in its cooking liquid in shallow containers to cool quickly, and reheat gently to a simmer before serving again.
