Beef · Slow cooker adaptation

British Cottage Pie (Slow Cooker)

Ross Bamford's lazy weekender cottage pie, with the filling moved to the slow cooker. Brown the mince and build the flavour story hard on the hob, slow cooker takes the simmer, mash and a cheddar top finish under the grill.

👁 270.4k source views
Prep 40 min
🍲Slow cook 4 hr (Low) / 2 hr (High)
🍽Serves 6
British Classic Cottage Pie - Lazy Weekender

Source video by Ross Bamford on YouTube. This recipe was adapted with strict source-fidelity rules and is marked for human review.

Ross's cottage pie is built around layered seasoning rather than long cooking. The hob work stays: brown the mince hard for colour, hit it with tomato puree, Worcester sauce and Henderson's relish until everything caramelises, then sweat onions and carrots in butter on a lower heat. Once it all comes back together with smoked paprika, flour and stock, the whole filling goes into the slow cooker for a low hands-off cook. Mash a generous quantity of red floury potatoes with butter, mature cheddar and a teaspoon of creamed horseradish, pile it onto the filling, fork the surface for crispy peaks, top with more grated cheddar, and 25 minutes at 200°C does the rest.

Slow cooker notes: Ross's original is hob-based: brown, build, briefly simmer, then bake. The slow cooker version preserves the entire hob flavour-build (browning, sauces, caramelisation, paprika, flour, stock) and replaces the 10-minute hob simmer with a low slow cooker cook so the carrots fully tenderise without overcooking the mince. Mash is made fresh on the day; assembly and oven finish are unchanged. Frozen peas added in the last 30 minutes in the slow cooker.

Ingredients

Filling
  • neutral high-smoke-point oil
  • lean steak mince (5%)
  • fine cooking salt
  • 40 gtomato puree
  • Worcestershire sauce
  • Henderson's relish
  • 5 carrotscarrots, peeled, topped and tailed, chunky chop
  • 1 onionbrown onion, medium dice
  • 35 gunsalted butter
  • 1 tspsmoked paprika
  • 7 gplain flour
  • 320 mlbeef stock
  • 1 tbspHP sauce (add late)
  • 175 gfrozen peas (add late)
Mash
  • 4 potatoesfloury red potatoes (Maris Piper / Russet), peeled, cut into 2.5 cm cubes
  • 100 gunsalted butter
  • 120 gmature cheddar, grated on the large holes
  • 1 tspcreamed horseradish sauce
  • sea salt flakes, crushed slightly
  • white pepper
Top
  • 80 gextra mature cheddar (for the top), grated (add late)

Method

  1. Heat the oil in a large frying pan on the hob over a high heat. Drop in the mince with a grip of salt and let it sit for a couple of minutes before breaking it up. Continue browning for 7 to 8 minutes until all water has gone and the meat is taking real colour.

    ~9 min
  2. Clear a space in the pan and squeeze in the tomato puree. Let it sit on the pan for a minute, then stir through the meat. Pour in the Worcester sauce and Henderson's relish and stir hard before they burn.

    ~3 min
  3. Tip the mince mixture onto a plate. Lower the heat slightly, add a little more oil, and fry the carrots hard for 3 to 4 minutes until just colouring.

    ~4 min
  4. Push the carrots to one side, drop the heat to low, and add the onion with another pinch of salt. Add the butter. Cook gently for 3 to 4 minutes until the onions are soft and translucent without browning.

    ~4 min
  5. Return the mince to the pan. Stir in the smoked paprika and the plain flour. Cook for 1 to 2 minutes to take the raw edge off the flour, stirring constantly.

    ~2 min
  6. Pour in the beef stock, scraping the bottom of the pan to deglaze. Stir to combine.

    ~1 min
  7. Tip the entire filling into the slow cooker. Cover and cook on low for 4 hours, or high for 2 hours.

    ~240 min
  8. In the last 30 minutes, stir in the HP sauce and the frozen peas. Replace the lid.

    ~30 min
  9. Meanwhile, simmer the potatoes in salted water until tender but still with a slight resistance (around 20-25 min). Drain into a colander, shake, and let steam-dry for 5 minutes.

    ~30 min
  10. Mash the potatoes back in the pan with the butter, the 120 g cheddar and the horseradish. Season with salt and white pepper. Aim for slightly rustic, not silky.

    ~5 min
  11. Tip the slow cooker filling into a 27x22 cm ovenproof dish and level. Spoon the mash over with a fork, smoothing to seal at the edges and forking the surface for crisp peaks. Scatter the remaining 80 g cheddar and a few salt flakes over the top.

    ~8 min
  12. Bake at 200°C fan / 220°C conventional / gas 7 on the middle shelf for 25 minutes until golden brown and bubbling at the edges. Rest for 5 minutes before serving.

    ~30 min

Frequently asked

Can I skip the slow cooker and stick to hob?
Yes, Ross's original is hob-based. After step 6, drop the heat to very low and simmer covered for 30 to 40 minutes, then assemble and bake. The slow cooker version just shifts that simmer to walk-away time.
What if I can't find Henderson's relish?
Use extra Worcester sauce or a small splash of soy. Henderson's is a slightly spicier, tomato-led northern English variant; the dish is fine without it but loses a little of Ross's flavour story.
Can I assemble ahead?
Yes. Cool the filling and mash separately, assemble in the dish, cover and refrigerate up to 24 hours. Bake from cold at 200°C for 35-40 minutes until piping hot through.
Extraction notes (transparency): Mince total weight is NOT stated in the transcript. Most other quantities are stated or estimated by Ross with explicit numbers (tomato puree 40 g, flour 7 g, stock 320 ml, butter 100 g for mash, cheddar 120 g for mash plus 80 g for top, frozen peas 150-200 g). Worcester sauce, Henderson's relish and HP sauce are given in 'glugs' and 'tablespoons' as ranges; recorded as stated. Salt to taste throughout.