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Confit potatoes in a grey bowl on a wooden background

The Quality Chop House Confit Potatoes

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These are the poshest ‘chips’ you’ll ever have. They take 12 to 14 hours, but hands-on time is around 30 to 60 mins, depending on how fast you work. Well worth it if you want to impress. Make sure you have these at least once in your life.

  • Total Time: 15 hours 30 minutes


Units Scale

For the confit potatoes

  • 1 kg Maris Piper potatoes
  • 125 g duck fat
  • 2 tsp salt
  • Light olive oil for frying
  • Maldon salt (to taste)

For the mustard dressing

  • 215 g Dijon mustard
  • Juice of 1/2 lemon
  • 1/2 teaspoon cider vinegar
  • 185 ml light olive oil or avocado oil


  1. Preheat your oven to 120 degrees Celsius (250 degrees Fahrenheit).  Line a 1.7l terrine or loaf tin with baking parchment. 
  2. Peel the potatoes and use a mandoline to slice them very thin.  Don’t go so thin they break up in the mandoline.  They should be translucent enough to see your finger tips through when you hold them.  You can also use a food processor with a slicing blade.  Don’t wash the potatoes; we want all of the starch in the dish.  Transfer to a large bowl.
  3. Melt the duck fat and pour over the potatoes in the bowl.  Add the salt.  Combine everything, separating out the individual slices as you go.
  4. Start to build up the layers of potato in the pan one slice at a time.  This is the labour of love part, but I find it to be very satisfying.  I like to focus on the outside edges, otherwise the middle can quickly build up disproportionately, leaving the edges sagging.
  5. Cover the top with parchment and place in the oven to cook for 3 hours, until completely tender.
  6. Allow to cool and then place (ideally) the same tin on top, with some kind of weight on top of that.  I use a large meat/burger press, but tins of food can work too.  You could also cut a piece of card to the size of the tin, cover that in baking foil and then put weights on top of that.
  7. Place in the fridge overnight to compress.
  8. The next day, gently remove from the tin (the parchment will be wet, so can tear easily), releasing around the edges with a knife if need be.
  9. Lay on a chopping board and cut into your desired size of chip.  If you have any offcuts where you squared off edges, keep those as they make amazing salad toppers.
  10. Heat your oil in a heavy pan to 190 degrees Celsius (375 degrees Fahrenheit) and deep fry for 4 minutes until they are croissant-brown.  You’ll need to do this in batches.  Sprinkle with Maldon salt and serve with the mustard dressing (or hollandaise). 
  • Author: Russell James
  • Prep Time: 12 hours
  • Cook Time: 3 hours 30 minutes
  • Category: Comfort Food
  • Method: Oven baking
  • Cuisine: French


  • Serving Size: 4 potatoes
  • Calories: 448
  • Sugar: 2.6 g
  • Sodium: 2105.1 mg
  • Fat: 32.2 g
  • Carbohydrates: 35.4 g
  • Protein: 3.8 g
  • Cholesterol: 25 mg