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Home / Beef on Weck Recipe Slow Cooker

Beef on Weck Recipe Slow Cooker

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Slow Cooker Beef Au Jus Sandwiches are easy enough for weeknight meals, but special enough for weekend entertaining. These are a trip down memory lane for me, as my mom made these sandwiches for us numerous times over the years. Use hoagie rolls for serving, along with a side of mashed potatoes!

Close-up shot of my hand holding a beef au jus sandwich, dipping it into some au jus in a white bowl, set on top of a black plate.

Roast beef was THE comfort meal for us growing up. I can remember having roast beef with potatoes, carrots, and onions – many many times. Later on, Mom started making more beef au jus sandwiches. She always served the beef on her french bead, which is the perfect bread to soak up all that juice.

So of course, I made some french bread hoagie rolls using this baguette pan. The BEST bread!

I added a step to my recipe that includes tomato paste, which is why the broth turned an orange color. Tomato paste gives the beef a full hearty flavor.

Overhead shot of beef au jus sandwich on a black plate, with a small white bowl of au jus, on a wooden background.

The Method

Mom never wrote down a recipe for her beef au jus sandwiches. But she talked me through it several times over the phone. The ingredients I used are a little different than what she did, but the method is the same.

  1. Season the meat and sear it on all sides on a pan on your stove top. Set aside.
  2. Add tomato paste to the same pan, and add onion along with spices and a little broth.
  3. Add all ingredients to the slow cooker.
  4. Cook until beef is falling-apart-tender.
  5. Shred beef and remove visible fat.
  6. Strain broth into a separate bowl for au jus.
  7. Serve with homemade french bread (or store bought is fine) and the au jus.

I cooked the beef for about 4.5 hours on high, but if you are putting it on before work in the morning, it could cook on low for about 8 hours or so.

Overhead shot of a black crock pot full of beef au jus, on a wooden background.

Overhead process shots of 1) the whole beef roast in a white shallow bowl, with lots of onions on top, on a wooden background, and 2) shredded beef with onions in a shallow white bowl on a wooden background.

Just in case you didn't know, Au Jus means With Juice, which is why you should always remember to keep the liquid, strain it, and serve it on the side.

When we ate this meal, I was reminiscing about the "old days" and how roast beef was usually the first thing Mom cooked after a vacation. Which was why I made these Beef Au Jus Sandwiches the day that Zach came home after a weekend in Austin. He said he "couldn't wait for a homemade meal". That was all I needed to hear to get the memories flowing.

Home cooking at it's finest! 🙂

Overhead shot of a beef au jus sandwich, sliced in half, on a black plate with a small white bowl of au jus.

 Try this recipe next: Slow Baked Pulled Pork

Please let know if you try this recipe. Be sure to comment and leave a review on the blog so I can see what you think. You can also like my Facebook Page, follow me on Pinterest, and catch me on Instagram.

xoxo ~Sue

Close-up shot of my hand holding a beef au jus sandwich, dipping it into some au jus in a white bowl, set on top of a black plate.

  • 1 Tablespoon olive oil
  • 3 pound beef chuck roast
  • kosher salt and freshly ground black pepper - to taste
  • 2 Tablespoons tomato paste
  • 1 large onion - sliced thin
  • 4 cups lower-sodium beef broth
  • 1/4 cup Worcestershire sauce
  • 1 teaspoon garlic powder
  • 1 teaspoon onion powder
  • 1 teaspoon red pepper flakes
  • 1 Tablespoon minced onions
  • 2 whole bay leaves
  • 6 hoagie french bread rolls

  • Liberally salt and pepper the beef chuck roast. Heat a pan to medium high heat and add olive oil. Get it good and hot. Then add roast and sear on all sides. This will help the roast hold in the juices.

  • Place roast in a crock pot. Put pan back on stove and add tomato paste and a 1/2 cup of beef broth. Stir around to get all the brown bits moving around. Add sliced onion, garlic powder, onion powder, red pepper flakes, and minced onions - and sauté for a couple of minutes to absorb the flavors.

  • Pour onions and juices over the roast. Add the remaining broth, Worcestershire Sauce, and bay leaves to the crock pot.

  • Cook on high for 4-5 hours, or low for 7-8 hours.

  • When the roast is very tender, remove to a separate dish along with the onions. Let sit about 15 mins before shredding, and remove visible fat. Strain the broth through a fine mesh strainer, reserving the juice. Discard bay leaves.

  • To serve, fill the hoagie rolls with shredded beef and onions. Pour the au jus in small bowls for dipping.

  1. Choose a cut of beef that works well with the slow cook method, like a chuck roast, pot roast, rump roast, etc. Ask your butcher for their suggestion.
  2. If the roast seems tough, it most likely needs to cook longer.

Calories: 640 kcal | Carbohydrates: 39 g | Protein: 52 g | Fat: 30 g | Saturated Fat: 11 g | Cholesterol: 156 mg | Sodium: 931 mg | Potassium: 1267 mg | Fiber: 2 g | Sugar: 7 g | Vitamin A: 240 IU | Vitamin C: 4.6 mg | Calcium: 68 mg | Iron: 16.4 mg

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Source: https://suebeehomemaker.com/slow-cooker-beef-au-jus-sandwiches/