Chicago Italian beef sandwiches are piled high with tender, peppery beef that has soaked up a seasoned broth for hours. This slow cooker version uses chuck roast, garlic, oregano, and pepperoncini juice for the tangy, savory flavor the sandwich is known for, and it ends with a dunk in hot jus so every bite is juicy.
The recipe is simple. You season and sear the roast, bloom the herbs with onions and garlic, pour in broth and pepperoncini juice, and let the slow cooker do the work for 8 hours on low. At the end, you shred the beef, stir it back into the juices, and build sandwiches that feed a hungry table of six.
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Why This Works
Chuck roast has the marbling and connective tissue needed for a long braise. After 8 hours at low heat, it relaxes into tender strands that stay moist in the broth instead of drying out the way a leaner cut might. Searing the beef first gives the pot a deeper, roasted flavor that plain slow cooking cannot match.
Pepperoncini juice is the secret to the signature tang. It cuts through the richness of the beef and adds a bright, vinegary note, while oregano, basil, Italian seasoning, and red pepper flakes bring the classic herb and heat profile. Cooking the spices with the onion and garlic for a minute before they go into the pot wakes up their flavor.
Ingredients
- 4 pounds beef chuck roast
- 2 teaspoons kosher salt
- 1 teaspoon black pepper
- 2 tablespoons olive oil
- 1 large yellow onion, sliced
- 6 cloves garlic, smashed
- 1 tablespoon dried oregano
- 2 teaspoons dried basil
- 1 teaspoon Italian seasoning
- 1 teaspoon crushed red pepper flakes
- 4 cups low-sodium beef broth
- 1 cup pepperoncini juice, from the jar
- 1 jar (16 oz) pepperoncini peppers, with some for topping
- 6 hoagie rolls
The salt amount is lower than many recipes because the pepperoncini juice is already salty. Taste the jus at the end and add a little more only if needed.
How to Make Chicago Italian Beef
1. Season and sear the beef
Pat the roast dry and season it all over with the salt and pepper. Heat 1 tablespoon of the olive oil in a large skillet over medium-high heat and sear the beef until it is deeply browned on every side. Move it to the slow cooker.
2. Cook the onion and garlic
Add the remaining oil to the same pan, then cook the sliced onion and smashed garlic until they begin to soften and pick up color. Scrape up any browned bits from the bottom of the pan.
3. Bloom the spices
Stir in the oregano, basil, Italian seasoning, and red pepper flakes with the onions for about a minute, until fragrant. Pour in the beef broth and pepperoncini juice, and stir to combine.
4. Slow cook
Pour the onion and broth mixture over the beef in the slow cooker and tuck in half of the pepperoncini peppers. Cover and cook on low for 8 hours, until the beef shreds easily with a fork. Low heat is important, because high heat may leave the beef less tender.
5. Shred and soak
Lift the beef onto a board, trim off any large pieces of fat, and shred it with two forks. Return the beef to the slow cooker and stir it into the juices. Let it soak for a few minutes so the meat absorbs the broth.
6. Build the sandwiches
Split the hoagie rolls, dip each cut side lightly in the jus, and fill generously with beef. Top with extra pepperoncini and serve hot with a cup of jus for dipping, Chicago style.
How to Serve
Italian beef is messy in the best way, so keep the sides simple. Perfect crispy french fries are the classic partner, and mozzarella stick onion rings make the meal feel like a party. For something cool and tangy, serve a scoop of dill pickle bacon pasta salad, or add a plate of roasted broccoli for something green.
How to Store and Reheat
Cool the beef and jus and refrigerate them within 2 hours. Store them together in an airtight container, or keep the meat and juices separate if you want to skim the fat once it chills. Eat the leftovers within 3 to 4 days.
Reheat the beef in a saucepan with plenty of jus until it is steaming hot and reaches 165 degrees F. The meat also freezes well in its juices in a sealed container. Thaw it overnight in the refrigerator before reheating, and use fresh rolls for serving.
Tips and Variations
Safe handling of leftovers makes this a great meal prep recipe. Michigan State University Extension explains how to chill and reheat food in its guide to handling leftovers safely, including the 2 hour chilling rule.
For extra heat, add more red pepper flakes or serve the sandwiches with a spoonful of hot giardiniera. A sweet pepper topping gives a milder flavor, and provolone melted over the beef turns it into a cheesy version. If the jus tastes too sharp, stir in a little more broth. For a thicker dip, chill the juices, lift off the fat, and reheat the jus separately.
FAQ
What makes Italian beef different from regular roast beef sandwiches?
Italian beef is seasoned with oregano, garlic, and peppers, cooked in a tangy broth, and dipped in the jus. Regular roast beef is usually plain and sliced thin.
Can I cook the beef on high?
Low for 8 hours gives the most tender beef. High heat can leave the roast less tender, so use it only if you are short on time and check that the meat shreds easily.
Do I need to dip the sandwich?
Dipping is part of the Chicago style and adds juiciness, but you can serve the jus on the side if you prefer a drier sandwich.
Can I use a different cut of beef?
Chuck roast is the best choice for shredding. Round roast also works, but it is leaner and may turn out drier.
How do I make the jus less salty?
Use low-sodium broth, keep the added salt small, and thin the jus with a little extra unsalted broth if it tastes too strong.
Chicago Style Italian Beef Sandwiches with Pepperoncini
Ingredients
Main Ingredients
- 4 lb beef chuck roast
- 2 tsp kosher salt
- 1 tsp black pepper
- 2 tbsp olive oil divided
- 1 large yellow onion sliced
- 6 cloves garlic smashed
- 1 tbsp dried oregano
- 2 tsp dried basil
- 1 tsp Italian seasoning
- 1 tsp crushed red pepper flakes
- 4 cup low-sodium beef broth
- 1 cup pepperoncini juice from the jar
- 1 jar (16 oz) pepperoncini peppers some reserved for topping
- 6 hoagie rolls
Instructions
Cooking
- Pat the roast dry and season it with the salt and pepper. Heat 1 tablespoon of the oil in a large skillet over medium-high heat and sear the beef until deeply browned on all sides. Move it to the slow cooker.
- Add the remaining oil to the pan and cook the sliced onion and smashed garlic until softened and lightly colored, scraping up the browned bits.
- Stir in the oregano, basil, Italian seasoning, and red pepper flakes for about a minute until fragrant, then pour in the beef broth and pepperoncini juice.
- Pour the onion and broth mixture over the beef and tuck in half of the pepperoncini peppers. Cover and cook on low for 8 hours until the beef shreds easily.
- Lift out the beef, trim large pieces of fat, and shred with two forks. Return it to the slow cooker and stir it into the juices to soak for a few minutes.
- Split the rolls, dip the cut sides lightly in the jus, fill with beef, top with pepperoncini, and serve hot with jus for dipping.
