Beef Po' Boy

Lunch | American

Prep time: 20 min Cook time: 3 min Servings: 4

This isn’t your average sandwich, it's slow-braised beef smothered in rich Cajun-spiced gravy, packed into a crunchy French stick with all the classic fixings. Crunchy lettuce, juicy tomato, tangy pickles, and a slather of mayo pull it all together. It's messy, meaty, and gloriously over the top.

The Po' Boy

The Po’Boy is a New Orleans sandwich built around braised or fried proteins. This version uses oyster blade, a secondary cut from the shoulder rich in collagen. At 140°C for 3 hours submerged in stock and aromatics, the collagen converts to gelatin. This gives the beef a yielding, pull-apart texture and leaves the braising liquid with natural body that makes an excellent base for gravy. Letting the beef cool in the liquid is as important as the braise itself. The slower temperature drop allows the meat to reabsorb some of the cooking juices, so slices stay moist rather than drying out when you cut and reheat them.

This gravy is a roux-based sauce made from the strained braising liquid. Butter and flour are cooked together first to eliminate the raw flour flavour, then the liquid is whisked in gradually to prevent lumps. Cajun seasoning adds the characteristic warmth and smokiness that ties the sandwich to its New Orleans origins.

Assemble with mayonnaise on the base, shredded iceberg, sliced tomato, dill pickles and the sliced beef with gravy ladled over the top. Toast the French stick so the crust holds up under the wet gravy without the bread disintegrating.

Ingredient Notes

Oyster blade: A flat, oblong cut from the shoulder, sometimes called flat iron steak when portioned individually. It has a seam of connective tissue through the centre that converts to gelatin during a long braise, adding body to the braising liquid. Brisket, chuck or short rib all work as substitutes. Avoid lean cuts like sirloin or eye fillet. They don’t have the fat and collagen needed for a 3-hour braise and will turn dry.

Cajun seasoning: A spice blend typically containing smoked paprika, garlic powder, onion powder, cayenne, black pepper and dried herbs. Available pre-mixed at most supermarkets. If mixing your own, focus on smoked paprika and cayenne as the base, with garlic powder, dried thyme and a pinch of dried oregano. Seasoning intensity varies between commercial brands, so taste and adjust.

French stick (baguette): The bread needs a proper crust to hold its structure under the gravy. A soft roll will soak through and fall apart during assembly. Toast the French stick closed in the oven before slicing and building the sandwich. The crust crisps while the inside warms without drying out.

Equipment

Chopping board
Chef’s knife
Heavy-based ovenproof saucepan with lid
Tongs
Fine sieve
Medium saucepan (for roux and gravy)
Whisk

Ingredients

2 tbsp olive oil
1.5kg Oyster blade, trimmed
sea salt and ground black pepper, to season
1 brown onion, peeled and quartered
2 carrots, chopped
2 sticks celery, chopped
5 cloves garlic, crushed
3 sprigs thyme
½ bunch parsley
1 bay leaf
½ tsp black peppercorns
1L (1 qrt) chicken stock
40g butter
¼ cup plain flour
1 tbsp Worcestershire sauce
1½ tsp Cajun seasoning
1 French stick
½ cup mayonnaise
2 tomatoes, sliced
½ iceberg lettuce, shredded
dill pickles, to serve

Directions

Preheat oven to 140°C fan force (285°F).
Heat oil in a heavy-based oven proof saucepan over medium-high heat.
Season beef with salt and pepper and add to the pan. Cook, turning until browned all over, then transfer to a plate.
Add onion and carrot to the pan, cook for 2-3 minutes, until starting to brown.
Add celery, garlic, thyme, parsley, bay leaf and peppercorns, stir through and cook for a further minute. Add the beef back to the pan.
Stir in stock, bring to a simmer then cover and transfer to the oven for 3 hours, turning beef over in cooking liquid halfway through.
Remove from the oven and allow beef to cool in the liquid.
Transfer beef to a tray and strain liquid through a sieve into a large bowl.
Melt butter in the same saucepan used for the beef over medium heat.
Add flour and whisk to combine, cook for 2-3 minutes.
Gradually whisk in reserved beef liquid, worcestershire and cajun seasoning, cooking until gravy thickens, about 5 minutes, then remove from heat.
Preheat oven to 200°C fan force (390°F).
Slice beef into 1cm thick slices then gently toss through gravy to coat.
Slice the French stick into 4 portions, then halve horizontally, without cutting all the way through.
Toast bread, closed, in the oven for 5 mins, until the tops are crispy.
Spread base of bread with mayonnaise, then top with lettuce, tomato, pickles and top with beef and some gravy. Close over the bread top and enjoy!

Recipe notes

Chef Tips

Brown the beef all over before braising

The caramelisation that happens when the beef surface hits a hot pan creates the flavour base of the entire braise. Every part of the beef that touches the hot pan builds colour and fond on the base of the saucepan. That fond dissolves into the stock as the braise cooks and gives the braising liquid its depth. Don’t rush this stage. Pat the beef dry before seasoning to ensure it browns rather than steams.

Cool the beef in the braising liquid before slicing

Pulling the beef out while still hot and slicing immediately causes the juices to run onto the board. The muscle fibres are still contracted from the heat. Leaving the beef to cool slowly in the liquid over an hour or two allows the fibres to relax and reabsorb moisture. The slices hold together better during reheating and stay juicy once the gravy goes over them.

Storage

The braised beef keeps in the gravy in the fridge for up to 3 days. Reheat gently in a saucepan over low heat. It also freezes well in the gravy for up to 3 months. Defrost overnight in the fridge and reheat on the stovetop. Assemble sandwiches fresh when you’re ready to eat rather than storing them assembled.

FAQs

Can I use a different cut of beef? Yes. Brisket is a good substitute and gives a similar pull-apart texture after a long braise. Chuck steak works well too. Avoid anything lean like topside or sirloin. The braising process needs fat and collagen to produce a tender result and a flavourful braising liquid.

Can I make this ahead of time? Yes, and it’s better the next day. The braised beef improves overnight in the fridge as it sits in the liquid. Skim any solidified fat from the surface the next day before reheating. The gravy can also be made ahead and refrigerated separately.

What can I serve it with? Chips (fries) are the classic accompaniment to a Po’Boy. Coleslaw alongside gives freshness to balance the richness of the braised beef and gravy. The braised beef also works well over mashed potato as a separate dish.