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- 2 Tbsp. rapeseed oil
- 2 red onions, each cut into eight wedges
- 1/2 tbsp demerara sugar
- 4 Tbsp. cider vinegar
- 4 x 100 g (3 1/2oz) calves' liver slices
- 800 g (1 3/4lb) floury potatoes, such as Maris Piper
- 40 g (1 1/2oz) butter
- 125 ml (4fl oz) whole milk
- 1 Tbsp. grainy mustard
- 1 Tbsp. fresh thyme
- Step 1
Heat the oil in a frying pan and fry the onions for 10min until soft. Sprinkle over the sugar and 2tbsp cider vinegar, then cook for 5min until caramelised. Transfer to a plate, keep warm and set the pan aside.
- Step 2
Meanwhile, cut out any large tubes or membranes from the liver. Dry with kitchen paper and set aside. Put the potatoes in a pan of cold salted water. Cover, bring to boil and simmer for 15-20 minutes until tender. Mash the potatoes with 25g (1oz) butter and the milk. Season to taste and keep warm.
- Step 3
Heat the remaining butter in the frying pan. Season the liver and fry for 4min, turning once. Take out of the pan, cover with foil and set aside to rest while you finish the recipe.
- Step 4
Put the remaining vinegar, mustard, thyme and 4tbsp water into the pan and heat for 1min to make a sauce. Season. Divide the liver, onions and mashed potatoes among four plates and drizzle over the sauce.
Per Serving:
- Calories: 446
- Total carbs: 43 g
- Sugars: 11 g
- Total fat: 21 g
- Saturated fat: 7 g

The GH Kitchen Team are Good Housekeeping’s resident recipe developers and all-round food obsessives. GH Kitchen Director Sarah Akhurst is our resident hosting pro and loves nothing more than putting on a foodie feast for friends. Our GH Kitchen Manager Linzi Pucino is our very own Italian food expert (originally hailing from the North East of Scotland!) and can be found working her way through midweek recipes that cover all bases, from haggis to ragu! Our Kitchen Editor Nadine Brown loves digging into the stories behind her favourite foods and enjoys applying her eclectic tastes to more modern, flavour-forward recipes - just don't give her too much chilli! Our Junior Food Content Produce Frankie Prichard combines a love of beautiful presentation and flavour-led, seasonal cooking in her recipe development, along with a passion for bringing people together through food. With a wealth of professional kitchen experience between them, they’re dedicated to ensuring every Good Housekeeping recipe is the best it can be, so you can trust they’ll work every single time
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