Castagnaccio – chestnut flour cake

Hugh Fearnley-Whittingstall' recipe for a castagnaccioRecently I found some chestnut flour and having never seen it before, decided to buy it and experiment with it. One use for it that i love is in Castagnaccio (chestnut cake) which is basically chestnuts sweetened with raisins, then infused with the fragrant taste of fresh rosemary. Slightly sweet and slightly savoury, it’s almost more of a bread than a cake – flat and dense in consistency with a crunchy topping. And its traditionally made in autumn time.
Here’s a recipes i’m trying out for you to play with yourself. Its simple, delicious, easy to make, and gluten free.
Meanwhile try substituting chestnut flour for half of the plain flour in your favourite dark chocolate cake or pud. It’s a winning combination!

Castagnaccio

Castagnaccio is a traditional cake from Liguria in Italy. Its especially good with coffee and can be enjoyed warm or cold and at any time of the day. As a dessert, serve it with organic ricotta or mascarpone and a little raw honey. It contains no gluten or raising agent, so it won't rise like a traditional cake. Instead, it's dense and rich without being too sweet. 

Chestnut flour is known in Italy as farina dolce for its sweet, rich flavour. Made from dried, milled chestnuts, it was once a very important source of nutrition to peasant communities in France and Italy. Today, it's something of a delicacy and well worth tracking down. You can buy organic chestnut flour from shipton-mill.com (£3 for 500g). 

A word on keeping chestnut flour - don't. Or at least not for very long. Buy in smallish quantities - enough to keep you going for a month or so - and keep it refrigerated and used as quickly as possible as natural oils in the flour will quickly turn rancid in a warm kitchen. 

Author huguru

Ingredients

Core recipe

  • 65 g walnuts soaked for 4 hours
  • 65 g raisins or sultanas soaked in 370ml of water for at least an hour (set aside the water for cake mixture)
  • 250 chestnut flour
  • 1 pinch sea salt
  • 1 tbsp fresh rosemary leaves to taste
  • 2 or 3 tbsp olive oil extra-virgin

Optional ingredients

  • 2 tbsp raw cacao
  • 30 pine nuts soaked for 4 hours
  • 1 tbsp Orange zest to taste
  • 1.5 tbsp maple or date syrup

Instructions

How To:

  1. Soak the nuts in a bowl of filtered water for at least 4 hours. Drain and discard the water.

  2. Soak the dried fruit for at least an hour, drain and reserve the water.
  3. Preheat the oven to Fan 170°C/338°F/Gas Mark 5
  4. Brush a 22cm springform cake tin (or similar) with some of the oil or line a baking tray (2.5cm deep) with baking parchment
  5. Sieve the flour into a large bowl and whisk in the salt, syrup and zest (if using)

  6. Gradually add the water from the dried fruit, whisking continuously to avoid lumps forming. The batter should be a smooth paste – not too runny or thick – and fall from the spoon in ribbons.
  7. Mix in any syrup (is using) and pour the mixture into a the prepared baking tray.
  8. Sprinkle the nuts, raisins and rosemary evenly over the surface and press them lightly into the batter.
  9. Bake in the oven for 30 minutess or until the top begins to crack and brown.
  10. Allow the cake to cool slightly before drizzling with olive oil.

Tip

  1. Serve with some organic ricotta (omit for a DF version) and a drizzle of raw honey

Sourced from:

The Guardian

Hemsley and Hemsley

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