Bangers and Mash

Ingredients

• For the sausages
• 8 pork sausages (bangers)
• For the mash
• 1 kg floury potatoes, peeled and quartered
• 100–150 g unsalted butter, cut into pieces
• 100 ml double cream, warmed
• 1 tsp fine salt, plus more to taste
• For the onion gravy
• 3 large onions, peeled and thinly sliced
• 150 ml red wine
• 400 ml beef stock
• 1 tbsp unsalted butter

Method

1. 1
   Place the sausages in a cold, heavy frying pan with no added fat. Set over medium-low heat and cook for 20 minutes, turning every 5 minutes. The fat renders gradually into the pan; the casing must not split. The dish is ready to proceed when the sausages are deep amber-brown on all sides and yield slightly to gentle pressure — this is where the dish lives or dies; high heat bursts the casing and drives out the interior fat, producing a dry sausage that no amount of gravy can rescue.
2. 2
   Transfer the sausages to a warm plate and rest for 3 minutes. Do not discard the pan or its drippings. The skin relaxes and the interior fat redistributes during this rest; cutting immediately produces a burst of fat from the casing.
3. 3
   While the sausages cook, boil the potatoes in well-salted water until a knife passes through the centre without resistance — approximately 20 minutes. Drain thoroughly and return to the hot pan over low heat for 1 minute to drive off residual moisture; the surface of the potato pieces should look dry and floury.
4. 4
   Pass the potatoes through a ricer or food mill into a warm bowl. Do not use a food processor: it cuts the starch chains and produces a gluey, gummy paste. Add the butter in pieces and the warmed double cream. Stir off the heat until smooth, rich, and glossy. Season generously with salt — potato requires significant salt; mash under-seasoned before service cannot be rescued at the table. The finished mash should fall from the spoon in slow, heavy ribbons.
5. 5
   Set the sausage pan over medium heat. Add the butter to the drippings and tip in the sliced onions. Cook, stirring regularly, until deep amber and soft throughout — 15 to 18 minutes. Pale onions produce a sharp, vegetal gravy; the onions must reach deep caramelisation before the liquid is added.
6. 6
   Pour in the red wine and deglaze the pan, scraping up all browned deposits. Allow the wine to reduce by half, then add the beef stock. Simmer, uncovered, until the gravy is glossy and coats the back of a spoon — approximately 8 to 10 minutes. Taste and adjust seasoning.
7. 7
   Spoon the mash onto warmed plates, lay the sausages alongside or over it, and pour the onion gravy over. Serve immediately while the mash still steams.