1-First Step: Season and sear the roast Start by heating 2 tablespoons olive oil in a skillet over medium-high heat. While the pan heats, season the 2.5 to 3 pound beef chuck roast generously with kosher salt and freshly ground pepper on all sides. When the oil is hot, sear the roast in the skillet until browned on every side. This step is optional, but it gives the beef a richer flavor and a nice savory crust. If you are short on time, you can skip the sear and still make a tasty slow cooker meal. Still, that quick browning adds a lot of depth to Crockpot French Dip Sandwiches, especially if you are serving guests or want a more robust beef flavor.

2-Second Step: Build the slow cooker base Transfer the seared roast to the slow cooker and pour in the pan juices from the skillet. Add 2 packets of dry onion soup mix, 2 cups water, and 2 cans of beef broth. These ingredients create the flavorful cooking liquid that will turn into the au jus later. Stir nothing complicated here. Just nestle the beef into the liquid so it cooks evenly. The broth and onion soup mix do most of the flavor work, which is why this recipe is such a dependable choice for Crockpot French Dip Sandwiches.

3-Third Step: Slow cook until tender Cover the slow cooker and cook the roast on high for 4 to 6 hours or on low for 8 to 10 hours, until the beef is very tender. The exact timing depends on your slow cooker and the thickness of the roast. A chuck roast should pull apart easily with forks when it is ready. If you are using a frozen roast, expect the cook time to increase by a couple of hours. Resist the urge to lift the lid too often because heat escapes each time you peek. That extra patience pays off with soft, juicy meat for your Crockpot French Dip Sandwiches.

4-Fourth Step: Shred the beef and save the broth When the roast is tender, remove it from the slow cooker and place it on a cutting board or large plate. Shred the meat with two forks, then taste the cooking liquid. This is a good moment to use a fat separator if you want a cleaner au jus. The broth from the slow cooker becomes the dipping sauce, so do not toss it. Spoon some of the liquid into a serving bowl and keep the rest warm. The flavor gets even better after the beef has rested in it for a few minutes.

5-Final Step: Assemble and broil the sandwiches Split the crusty rolls and fill each one with shredded beef. Top with Swiss or provolone cheese, then place the sandwiches under the broiler just long enough for the cheese to melt and the bread to toast lightly. Watch closely so the rolls do not burn. Serve the sandwiches hot with a bowl of au jus from the slow cooker on the side. Dip every bite and enjoy the mix of soft beef, melted cheese, and crisp bread. That is the classic comfort that makes Crockpot French Dip Sandwiches so loved.