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Mashed Potato Cake (Gluten Free)

by Choccywoccydoodah from Chocolate Cake & Curses

This Mashed Potato Cake filled with Nutella is a gluten-free treat from the Choccywoccydoodah cookbook. This rich, indulgent chocolate cake uses mashed potato instead of flour and is deliciously moist.

From the book


For great results egg whites have to be stiff. Fill it with Nutella for extra decadence!

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125g unsalted butter, plus a little extra for greasing
400g caster sugar
250g warm mashed potato
100g dark chocolate, melted
1½ tsp bicarbonate of soda, dissolved in 4 dessertspoons of warm water
4 large eggs, separated
a pinch of salt
a dash of vanilla extract
125ml milk
For the filling:
4 tbsp Nutella

Essential kit

You will need two 15cm cake tins.


Preheat the oven to 210ºC /190ºC fan oven/410°F/ gas mark 6½. Grease and line two 15cm cake tins with greaseproof paper.

Cream the butter and sugar together in a large bowl using an electric hand whisk until the mixture is light and fluffy.

Beat in the mashed potato and melted chocolate.Add the dissolved bicarbonate of soda and beat again, making sure it’s all mixed in.

Beat the egg yolks in a separate bowl until they look creamy then add to the mixture in the large bowl, along with the salt and vanilla. Pour in the milk gradually, stirring all the time.

Whisk the egg whites in a spotlessly clean, greasefree bowl until stiff.The beaters need to be clean, too, otherwise the egg whites won’t whip up. When the whites are ready you should be able to hold them over your head without them falling out.

Fold the egg whites into the mixture using a large metal spoon, taking care not to beat out the air.
Divide the mixture between the two cake tins and bake for 30 minutes, or until a skewer pushed into the centre comes out clean.

Transfer to a wire rack to cool and, once cool, spread one half with the Nutella then top with the other half and tuck in.

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