Umami cheeseburger

Umami cheeseburger
  • Serves icon Serves 4
  • Time icon Hands-on time 40 min, plus at least 4 hours prep

This epic burger is all the proof you need that good things are worth the wait. It’s a true labour of love but Richard H Turner‘s incredible cheeseburger brings the tastiest of rewards.

And because the meal wouldn’t be complete without a side of fries, here’s how to make the best crispy oven chips. 

Nutrition: per serving

Calories
843kcals
Fat
43g (21.2g saturated)
Protein
65.9g
Carbohydrates
46.7g carbs (7.8g sugars)
Fibre
2.7g
Salt
4.3g
Calories
843kcals
Fat
43g (21.2g saturated)
Protein
65.9g
Carbohydrates
46.7g carbs (7.8g sugars)
Fibre
2.7g
Salt
4.3g

Per burger

Ingredients

  • 1 beef tomato, cut into 1cm slices
  • 100g parmesan cheese (see tips)
  • 4 tbsp American mustard
  • 4 tbsp tomato ketchup
  • 4 tbsp mayonnaise
  • 4 tbsp soy sauce
  • ½ tbsp olive oil
  • 70g onion, roughly chopped
  • 720g chuck steak, minced with 80g bone marrow (see tips)
  • smoked Maldon sea salt flakes
  • 4 burger buns, halved (see tips)
  • 40g chopped pickled shiitake mushrooms (see below)
  • Gentleman’s relish butter (see below)
  • 4 thin slices ogleshield or cheddar cheese (see Know-how)
  • 4 soft lettuce leaves

For the pickled shiitake mushrooms (makes 50g)

  • 30g dried shitake mushrooms
  • 60g caster sugar
  • 70ml light soy sauce
  • 70ml cider vinegar
  • 20g fresh ginger

For the Gentleman’s relish butter (makes 450g)

  • 125g anchovy fillets in oil (drained)
  • 250g softened unsalted butter
  • a small pinch each of cayenne pepper, nutmeg, black pepper, ground cinnamon
  • 25ml Worcestershire sauce
  • 25ml lemon juice
  • 25ml cold water

Method

You need to start your burger prep at least 5 hours before you want to eat.

  1. For the pickled shiitake mushrooms, soak the shiitake mushrooms in boiling water until softened for 3-5 hours. Lift the mushrooms from the steeping liquid (reserve the liquid), discard the stalks and cut the caps into 3mm slices. Strain and reserve 50ml of the steeping liquid, then pour into a small pan. Add the mushroom caps, caster sugar, soy sauce, cider vinegar and root ginger. Bring to a simmer and cook for 30 minutes, stirring occasionally, then remove from the heat and leave to cool. Strain into a sterilised jar (discarding the ginger). Seal and leave in the fridge to pickle for at least an hour (although they’re better after 1 week).
  2. For the Gentleman’s relish butter, put the anchovy fillets, butter, cayenne pepper, nutmeg, black pepper and ground cinnamon with the lemon juice, Worcestershire sauce and water into a blender or food processor and whizz until smooth. Put a sheet of cling film onto the work surface and spoon the butter along the edge nearest you, then use the cling film to roll it into a tight log, twisting the ends to seal. Chill in the fridge for an hour, or until firm, before using.
  3. Heat the oven to 110°C/90°C fan/gas ¼. Put the tomato slices on a baking tray and cook for 4 hours to dry out, turning halfway. Set aside.
  4. Next, make the parmesan tuiles: turn the oven up to 180°C/160°C fan/gas 4 and line 2 trays with non-stick baking paper. Grate the parmesan (see tips) into 4 equal round piles. Bake for 5-7 minutes until melted and golden. Remove and leave to cool on the trays.
  5. For the umami sauce, mix the mayo, mustard, ketchup and soy in a bowl.
  6. Heat the olive oil in a small frying pan over a medium heat and fry the onion with a pinch of salt for 8-10 minutes until softening, then set aside.
  7. Meanwhile, form 4 loose patties out of the mince. Season the patties with the smoked sea salt flakes, heat a griddle pan until smoking hot and split and toast the burger buns. Grill the burgers for 4 minutes on each side until medium rare, or longer for well done.
  8. Still on the griddle, top each burger with fried onion, pickled mushrooms and 1-2 slices of the gentleman’s relish butter, followed by a slice of cheese. Spread both sides of the buns with the umami sauce, then put a lettuce leaf and some dried tomato slices on the base. Put a stacked burger on top, followed by a parmesan tuile and finally the bun top.

This recipe is from Prime: The Beef Cookbook by Richard H Turner (£25; Mitchell Beazley).

delicious. tips

  1. You can pickle the mushrooms and make the gentleman’s relish butter up to a week ahead. Keep the butter covered in 
the fridge for up to a week, or freeze, wrapped in cling film and foil, for up 
to 3 months. The leftovers (there will be a lot) go well with grilled or barbecued steak or white fish. Keep the mushrooms in the fridge once opened and use within a month.

    Dry the tomatoes up to 24 hours ahead and keep in a sealed container. Make the parmesan tuiles up to 4 hours in advance and keep in a cool, dry place.

  2. Ogleshield is a British cheese with a great melt, or use a mature cheddar if you prefer.

Recipe By

Richard H Turner

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