With a special surprise ingredient, this gluten free cake stays beautifully moist. To everyone’s amazement it's mash potato!
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If you have one, use a potato ricer to mash your potatoes; it will give a fantastically light and fine texture.
Make it nut-free
If you’d like to make this nut-free, as well as wheat-free, switch the ground almonds for polenta or wheat-free flour.