Corned beef usually gets the spotlight on a Reuben sandwich. But a slow braised chuck roast built right makes corned beef look like a shortcut.
When cooked low and slow in Guinness stout, chuck roast becomes tender, rich, and deeply flavorful while still staying sliceable. The result is a braised beef sandwich that's heartier, bolder, and more satisfying than the original — a genuine upgrade on classic pot roast recipe technique, aimed at one specific sandwich.
This version builds around Guinness braised beef, tangy sauerkraut, and a creamy herb horseradish Gruyère spread, all grilled between buttery rye bread. Great St. Patrick's Day food, and honestly great game day food too — this is a Dutch oven pot roast that earns its place on a table full of football snacks.
One cook. Two meals. Zero regrets.
Tools Used
Staub Cast Iron Dutch Oven — https://amzn.to/4unxD0X
Large Stainless Steel Pan — https://amzn.to/4aGCyCy
Wüsthof Serrated Knife — https://amzn.to/4sg4AdW
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Why This Works
Chuck roast is built for slow braising — the fat and connective tissue that make it tough over quick heat melt into rich, tender meat over low, patient heat. Guinness stout adds malt sweetness and bitterness that balances the richness of the beef, building a braising liquid with real depth instead of just gravy.
Fresh ground seasoning is what makes the sear worth doing in the first place. Crack open Lucky Cajun Black Label and it hits you immediately — bright paprika, cracked pepper, still alive, nothing dusty. That crust on the roast carries flavor through the entire 3-hour braise; seasoning that's already gone flat before it hits the pan has nothing left to give a cook this long.
Ingredients
Guinness Braised Beef:
- 3 lb chuck roast
- Fresh ground Lucky Cajun Black Label seasoning
- 3 tbsp butter
- 1 onion, diced
- 2 medium carrots, chopped
- 1 large celery stalk, chopped
- 1 tbsp sea salt
- 1 (22 oz) bottle Guinness stout
- 2 cups beef stock
- 2 bay leaves
- 2 tbsp mustard
- A few splashes Worcestershire sauce
Herb Horseradish Gruyère Spread:
- ½ cup fresh chives, roughly chopped
- ½ cup Italian parsley, chopped
- 2 tbsp horseradish
- 1 tbsp fresh cracked pepper
- ¼ cup mayo
- 8 oz cream cheese, room temperature
- 8 oz Gruyère, grated
Sandwich:
- Rye bread
- Sauerkraut, squeezed dry
- Butter
- Braised beef
- Guinness au jus
Instructions
1. Sear the Roast
Season the chuck roast generously with fresh ground Black Label. Heat 3 tablespoons butter in a large stainless steel pan and sear the roast on all sides until it develops a deep brown crust. Don't rush this step — that crust is where the flavor lives.
2. Build the Braise
Remove the roast and place it in the Dutch oven. In the same pan add diced onion, carrots, and celery. Cook while scraping up the browned bits from the pan. Add sea salt. Pour in the Guinness, beef stock, bay leaves, mustard, and Worcestershire. Bring to a simmer and pour everything over the roast.
3. Braise
Cover the Dutch oven and place it in a 350°F oven for about 3 hours. The beef should be fork tender but still sliceable — not falling apart into shreds. That distinction matters for a sandwich.
4. Make the Herb Horseradish Gruyère Spread
In a food processor combine chives, parsley, horseradish, cracked pepper, mayo, and cream cheese. Blend until smooth and creamy. Fold in grated Gruyère and set aside.
5. Build the Sandwich
Slice the braised beef. Spread the herb horseradish Gruyère mixture generously on both slices of rye bread. Layer braised beef and squeezed sauerkraut.
6. Grill the Reuben
Butter the outside of the bread. Place on a buttered griddle over medium-low heat. You want the butter sizzling but not burning. Cook until the bread is golden, the cheese is warm, and the beef is heated through.
Slice and dip into the Guinness au jus.
Leftover Love Story
If you end up with leftover braised beef and herb horseradish Gruyère spread there's an easy way to stretch it into another meal.
Stir the cheese spread into warm mashed potatoes until creamy and smooth. The horseradish, herbs, and Gruyère melt into the potatoes and build a rich base. Slice or shred the leftover beef and warm it gently in the au jus. Spoon the mashed potatoes into a bowl, pile the beef on top, and finish with a little braising jus.
One cook. Two completely different meals.
Variations With Other Lucky Cajun Blends
Smokier version: Swap Black Label for Lucky Cajun Black Beard's Smoke on the roast. The smoked habanero and chipotle build a darker, bolder crust that pairs perfectly with the Guinness braise.
Spicier version: Add a few pinches of Lucky Cajun Voodoo to the braising liquid for a subtle Cajun heat that cuts through the richness of the Gruyère.
FAQ
What is a Reuben sandwich made of?
Traditionally, corned beef, Swiss cheese, sauerkraut, and Russian or Thousand Island dressing on grilled rye bread. This version swaps in Guinness braised chuck roast and a horseradish Gruyère spread for a bolder, richer take on the same structure.
Can you use chuck roast instead of corned beef for a Reuben?
Yes. When braised slowly, chuck roast becomes tender and flavorful while remaining sliceable — making it a genuinely better substitute for corned beef in most cases, not just a workaround.
What is the difference between corned beef and braised chuck roast?
Corned beef is beef brisket cured in a salty brine, which gives it that distinct pink color and tang. Braised chuck roast is unbrined and slow-cooked in liquid, which produces a deeper, more savory beef flavor without the cure's sharpness.
Why braise chuck roast in Guinness?
Guinness stout adds malt sweetness and bitterness that balance the richness of the beef and build a more complex braising liquid than stock or wine alone.
How long does chuck roast take to braise in a Dutch oven?
About 3 hours at 350°F. The beef is ready when it's fork tender but still sliceable — you're not looking for shredding tenderness here, since sliced beef holds together better on a sandwich.
Can I make this in a slow cooker or Instant Pot?
Yes. Sear the roast on the stovetop first for the crust and flavor, then transfer to a slow cooker on low for 8 hours or an Instant Pot on high pressure for about 60 to 75 minutes with a natural release. Either method gets you tender, sliceable beef.
What bread is best for a Reuben sandwich?
Rye bread is traditional and works best because its density holds up to the braised beef and sauerkraut without getting soggy.
What is Gruyère cheese and can I substitute it?
Gruyère is a firm, nutty Swiss cheese that melts smoothly and has more depth than standard Swiss. If you can't find it, Swiss cheese is the closest substitute, though the flavor will be milder.
What is sauerkraut and does it need to be cooked?
Sauerkraut is fermented cabbage with a tangy, sour flavor. For this sandwich it's used cold, straight from the jar, squeezed dry to remove excess moisture — no cooking needed, just drain it well so it doesn't make the sandwich soggy.
Is this good for St. Patrick's Day?
Yes — it's a natural fit. Guinness braised beef instead of corned beef, built into the same classic Reuben structure, makes it perfect St. Patrick's Day food with more depth than the traditional version.
Is this good for game day?
Absolutely. It's a hearty, shareable, hands-on sandwich that reheats well, making it a strong addition to any lineup of game day food or football food recipes.
What do you do with leftover braised beef?
Stir the herb horseradish Gruyère spread into warm mashed potatoes, then top with the shredded or sliced leftover beef and a spoonful of the braising jus. One braise, two completely different meals.
Can I make this ahead of time?
Yes. The braised beef actually improves when made a day ahead because the flavors deepen overnight. Reheat gently in the au jus before building the sandwich.
What temperature do you braise chuck roast at?
350°F in a covered Dutch oven for about 3 hours is the standard for this recipe.
How do you know when chuck roast is done braising?
It should be fork tender and easy to slice, but not falling apart into shreds. If it resists the fork, it needs more time; if it's shredding on its own, it's gone slightly past the ideal point for a sliceable sandwich.
How do you keep the cream sauce from breaking when grilling?
Medium-low heat is the key. The butter should sizzle but not burn. Slow and steady melts the cheese without splitting the spread.
What does Black Label add to braised beef?
It builds a deep seasoned crust during the sear that carries flavor through the entire braise — the smell alone tells you it's working, sharp and peppery the moment it hits the hot pan. No fillers, no sugar, just bold fresh ground seasoning that holds up to a 3-hour cook.
Can I use a different cut of beef?
Chuck roast works best for braising because the fat content keeps it moist. Brisket is a good alternative. Leaner cuts tend to dry out.
Why Lucky Cajun
Fresh ground seasoning changes what a sear looks like and what a braise tastes like. The moment Black Label hits a hot pan, the aroma lifts immediately — that's the volatile oils still doing their job, something a jar that's been sitting in a warehouse for a year simply can't do anymore. Every bag ships with a Born-On Date so you know the flavor is still alive when it hits the pan. No fillers. No warehouse dust.
🌶️ Shop Lucky Cajun Black Label
🌶️ Shop Lucky Cajun Black Beard's Smoke
🌶️ Shop Lucky Cajun Voodoo
Tender Guinness braised beef. Tangy sauerkraut. Creamy horseradish Gruyère. Crispy buttery rye.
Corned beef never had a chance. 🌶️
