Poached Yorkshire rhubarb with vanilla crème fraîche, blood orange, white chocolate and almond

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This stunning dessert is the perfect combination of blood orange and forced rhubarb – two highly seasonal ingredients that offer a colourful punch of sweetness towards the end of winter and beginning of spring. Served with a snappy almond biscuit on top, it requires some forward planning to pull off; take your time in the kitchen, however, and you'll be rewarded with a knockout dish to end any meal.

Note that some of the more time-consuming elements (like the candied orange and rhubarb purée) are only needed to top the biscuit, so to make this dish easier you could simply focus on what's in the glass and serve with shop-bought biscuits or your own simpler biscuit recipe (it's nice to have something crunchy to enjoy with it, however).

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First published in 2021

Ingredients

Metric

Imperial

Rhubarb

Vanilla crème fraîche

  • 170g of crème fraîche
  • 170g of whole milk
  • 40g of caster sugar
  • 1 vanilla pod
  • 1 bronze gelatine leaf

Blood orange jelly

  • 100ml of blood orange juice, squeezed from approx. 2 blood oranges
  • 2 tsp caster sugar
  • 1/2 bronze gelatine leaf

Rhubarb purée (if preparing the biscuits)

Candied orange (if preparing the biscuits)

  • 2 slices of blood oranges, 3mm thick and cut from the centre of the orange to form discs
  • 250g of caster sugar
  • 180ml of water

biscuit (optional)

To serve

  • 2 tsp lemon oil, ideally Sicilian lemon cold-pressed rapeseed oil
  • 2 blood oranges

Equipment

  • Squeezy bottle
  • Piping bag with a thin nozzle

Method

1
There are a good few elements to this dish, the majority of which need chilling in the fridge or cooling before plating, so it’s best to make what you can a day or two in advance and read the recipe through before beginning. If desired, you could prepare everything except the biscuits the day before serving, which makes serving much easier
2
Start by making the candied orange. Boil the blood orange slices for 2 minutes, then refresh in iced water. Add 180g of the caster sugar, water and drained orange slices to a pan and cook slowly over a low heat for 45 minutes, until the peel turns translucent. Drain and leave the slices to dry on a wire rack for 2 hours
  • 2 slices of blood oranges, 3mm thick and cut from the centre of the orange to form discs
  • 180g of caster sugar
  • 180ml of water
3
Meanwhile, make the crème fraiche. Soak the gelatine in cold water for 5-10 minutes until soft. Place a small saucepan over a low heat and gently warm the milk with the scraped vanilla seeds and pod, along with the sugar. Stir until the sugar dissolves, then remove from the heat and squeeze the softened gelatine to drain. Whisk the gelatine into the milk until dissolved, then pour the mixture into a bowl set over iced water to cool. Stir in the crème fraiche and, when the mixture has completely cooled, discard the pod and divide it between 4 bowls or serving glasses. Place in the fridge for at least 15 minutes to set, but ideally a few hours or longer
  • 1 bronze gelatine leaf
  • 170g of whole milk
  • 1 vanilla pod
  • 40g of caster sugar
  • 170g of crème fraîche
4
For the purée, chop the rhubarb and combine in a bowl with the sugar. Set aside to macerate for 5 minutes
5
Tip the sugared rhubarb into a saucepan over a low heat, then turn up the heat and stir continuously until the rhubarb has broken down and a thick pulp has formed. Blitz in a food processor until smooth, then quickly cool in a bowl set over iced water. Transfer to a squeezy bottle and keep in the fridge until needed
6
For the rhubarb batons, preheat an oven to 160°C/140°C fan/gas mark 3. Cut the stalks into 6cm batons and place in a small ovenproof dish with the sugar and a little blood orange zest, stirring well. Cover with foil and bake in the oven until tender (roughly 10-20 minutes, although keep checking regularly after 10 minutes), then allow to cool. Once cool, place in the fridge until ready to serve
7
Once the candied orange slices have been drying for 2 hours, chop each disc into 10 pieces and toss in the remaining sugar. Cover and set aside until needed
  • 70g of caster sugar
8
To make the blood orange jelly, soak the gelatine in cold water for 5-10 minutes, until soft. Meanwhile, place a small saucepan over a low heat and gently warm the blood orange juice with the sugar until the sugar dissolves. Remove from the heat, squeeze the gelatine leaf to drain, then whisk it into the juice until dissolved. Pour the juice into a bowl set over ice and leave to cool. Once cool, pour a thin layer over the set crème fraiche in your serving bowls or glasses and return to the fridge to set completely (at least 10 minutes, but ideally an hour or longer)
  • 1/2 bronze gelatine leaf
  • 100ml of blood orange juice, squeezed from approx. 2 blood oranges
  • 2 tsp caster sugar
9
To make the biscuits, gently melt the butter over a low heat, then pour into a mixing bowl with the icing sugar, nibbed almonds, flour, orange zest and juice, mixing until smooth. Place in the fridge and allow to set. Meanwhile, preheat an oven to 180°C/160°C fan/gas mark 4
10
Line a baking tray with baking paper and spread the set mixture out onto it, then bake for 12-16 minutes until golden (the mixture is similar to a brandy snap, so will melt and level out naturally whilst baking)
11
Once golden, allow to cool for a few minutes until warm, the carefully cut the biscuits into rectangles measuring roughly 3x9cm. Transfer to a cooling rack and allow to cool completely and firm up
12
Meanwhile, gently melt the chocolate in a bain-marie, then transfer to a piping bag and carefully pipe the chocolate on top of the biscuits in a crisscross pattern. Transfer to an airtight container until ready to serve
13
Peel and segment the two blood oranges, ensuring there is no white pith – you want roughly 20 segments in total
14
To serve, remove the serving bowls or glasses from the fridge and top with batons of poached rhubarb and the blood orange segments. Spoon over some of the rhubarb poaching liquor, then add a few drops of the lemon oil to each dish (no more than half a teaspoon per portion). Place dots of the rhubarb purée on top of the biscuits, then add pieces of candied orange and the crystallised thyme on top and in between
  • 2 tsp lemon oil, ideally Sicilian lemon cold-pressed rapeseed oil

After a decade at the helm of Michelin-starred London restaurant Kitchen W8, Mark Kempson continues to encapsulate everything great about modern, seasonal British cookery.

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