Sweet Potato & Walnut Loaf Cake

I missed the whole pumpkin dessert bandwagon when Halloween rolled around, but then I thought, why not use another orange-y vegetable instead? Sweet potatoes are one of my favourite root vegetable and I love how brightly coloured they are.

Back in Hong Kong, my mum always used to buy these amazing little Japanese purple sweet potatoes, but I haven’t yet been able to find a variety as moist and with such an intense flavour as those in the UK. These sweet taters were so delicious that there was a cafe dedicated to making sweet potato soft serves πŸ˜€

IMG_2564

Unfortunately, I think this place is now closed, but if I’m able to source some really good sweet potatoes from somewhere, I may give a go at making some purple ice cream too!

Anyway, back to this cake – since other vegetables have worked well in bakes (carrot, pumpkin and even courgette!), using sweet potato also made sense. I’ve adapted my recipe from the one I found here, mainly in cutting down the amount of sugar and upping the spices.

IMG_9289 (2)

Ingredients

  • 2 medium sweet potatoes (you’ll need 200 g of its cooked weight)
  • 150 g caster sugar
  • 120 ml vegetable oil
  • 2 eggs
  • 1 tsp vanilla extract
  • 200 g plain flour
  • 2 tsp baking powder
  • 1/2 tsp ground cinnamon
  • 1/2 tsp mixed spice
  • 1/4 tsp nutmeg
  • 50 ml water
  • For the topping:
    • 80 g walnuts
    • 1 tbsp caster sugar
    • 1/2 tsp mixed spice

Directions

  1. Cook the sweet potatoes (either in a microwave for 8 mins or until soft, or in a steamer), scoop out the flesh and mash. Leave to cool.
  2. Preheat the oven to 180Β°C / 160Β°C fan / 350Β°F.
  3. Line your loaf tin with parchment paper.
  4. Whisk together sugar and oil, adding one egg at a time and mixing well.
  5. Add vanilla extract.
  6. In a separate bowl, sift flour and combine with baking powder and spices.
  7. Add a third of the dry ingredients into the wet mixture, adding a splash of water in between mixes, until all the ingredients have been folded together.
  8. Stir in the mashed sweet potato.
  9. Pour the cake batter into the loaf tin and top with the walnut, sugar and spice mix.
  10. Bake for an hour, or until a skewer comes out clean.

This loaf cake turned out to be really tasty! As I cut down on the sugar, it is only lightly sweet and delicious with a cup of tea. The cake is more like a pound cake than a sponge but it isn’t uncomfortably dense, and the walnut topping adds a great contrast in the textures. All in all, another lovely cake for the cooler autumn season πŸ™‚

IMG_9295

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s