Viral TikTok Pot Roast with Mashed Potatoes

This is the pot roast that broke TikTok this week: a beef chuck roast braised low and slow until it falls apart with a fork, then piled over buttery mashed potatoes with carrots, pearl onions and a glossy pan gravy. It is the kind of Sunday dinner that makes the whole house smell incredible for hours.

The trick is patience, not skill. Sear the beef hard for colour, tuck it into a pot with onion, garlic, tomato paste and beef stock, then let the oven do the work while you mash the potatoes. The gravy practically makes itself from the braising liquid.

I have tested this twice now and both times the roast was meltingly tender. Serve it straight from the pot at the table and let everyone help themselves.

Ingredients

• 1.5 kg (3.3 lb) beef chuck roast
• 1½ tsp fine sea salt
• 1 tsp black pepper
• 2 tbsp olive oil
• 2 medium onions, sliced
• 4 garlic cloves, minced
• 2 tbsp tomato paste
• 500 ml (2 cups) beef stock
• 1 tbsp Worcestershire sauce
• 2 tsp dried thyme (or 4 fresh sprigs)
• 2 bay leaves
• 4 medium carrots, cut into thick batons
• 200 g (7 oz) pearl onions, peeled

For the mashed potatoes

• 1 kg (2.2 lb) floury potatoes, peeled and quartered
• 60 g (4 tbsp) unsalted butter
• 120 ml (½ cup) warm whole milk
• ½ tsp fine sea salt

To serve

• Fresh thyme leaves, to garnish

Instructions

1. Season and sear: Pat the chuck roast dry and season all over with salt and pepper. Heat the olive oil in a large heavy ovenproof pot over medium-high heat and sear the beef for 4–5 minutes per side until deeply browned. Lift it out and set aside.
2. Build the braising base: Turn the heat to medium, add the sliced onions and cook for 5 minutes until softened. Stir in the garlic and tomato paste and cook for 1 minute, then pour in the beef stock, scraping up the browned bits from the base. Stir in the Worcestershire sauce, thyme and bay leaves.
3. Braise low and slow: Return the beef to the pot, cover with a tight lid and cook in a 160°C (325°F) oven for 3 hours. Add the carrots and pearl onions around the roast, re-cover and cook for 30 more minutes. The beef is done when it shreds easily with two forks.
4. Make the mashed potatoes: While the roast finishes, boil the potatoes in salted water for 18–20 minutes until completely tender. Drain well, then mash with the butter and warm milk until smooth and fluffy. Season with salt.
5. Make the gravy: Lift the beef and vegetables out of the pot and keep warm. Simmer the braising liquid over medium heat for 5–8 minutes until slightly thickened, then taste and adjust the seasoning. Remove the bay leaves.
6. Serve: Slice or shred the beef and pile it over big spoonfuls of mashed potatoes. Spoon over the carrots, pearl onions and plenty of gravy, and scatter with fresh thyme.

Tips for the best result

• Do not skip the sear: the brown crust is where most of the flavour comes from.
• If the gravy is thin, whisk 1 teaspoon of cornflour with 2 tablespoons of cold water and stir it in while simmering.
• A slow cooker works too: sear first, then cook on low for 7–8 hours.

Storing and reheating

Refrigerate the beef and gravy in an airtight container for up to 4 days, or freeze for up to 3 months. Reheat gently in a covered pan with a splash of stock. Mashed potatoes keep for 3 days in the fridge; reheat with a knob of butter and a splash of milk.

Frequently asked questions

Which cut of beef is best for pot roast?

Chuck roast is ideal because its connective tissue melts into the braising liquid, giving you tender meat and a rich gravy. Brisket works too but takes a little longer.

Can I make this in a slow cooker?

Yes. Sear the beef and build the base in a pan first, then transfer everything to a slow cooker and cook on low for 7–8 hours or high for 4–5 hours.

Why is my pot roast tough?

It almost always means it needs more time. Tough chuck becomes tender only after a long, gentle braise, so keep cooking until a fork slides in easily.

Can I make the mashed potatoes ahead?

Yes, make them up to a day ahead and reheat in a pan with extra butter and milk, stirring until smooth and hot.