My eldest daughter turns 2 this Spring, and it has been my quest since she was born to find a way of creating a birthday cake for her that is sugar free but that still looks like a “traditional” homemade birthday cake and also tastes good.
After fruitless online and recipe book searches, I decided to create my own by combining and adapting a variety of ideas I’ve found to suit my purpose. The sweet potato icing sounds a little odd, but trust me, it tastes so creamy, and the natural sweetness of the potato lends itself very well to sugar-free baking.
So here you go, my beautiful girl. Happy Birthday!
For the jam:
350g frozen raspberries (or other fruit of choice)
3-4 tsp cornflour
For the icing:
1 large sweet potato, mashed
85g pitted dates, chopped
30g unsweetened cocoa powder
3 tbsp coconut oil
2 tbsp Indulgent nut butter (or other nut butter)
125ml milk (I used almond)
1tsp vanilla essence
- Pre-heat oven to 180C/350F/Gas Mark 4.
- Grease and line 2 20cm/8″ round cake tins.
- When your oven is to temperature, put the sweet potato in to bake on a low shelf (leave the middle shelf free for the cakes). It will need 50-60 minutes at this temperature.
- Measure the flour into a large mixing bowl.
- Sieve the carob powder, cocoa powder and baking powder into the flour and mix until thoroughly combined.
- In a food processor, mix the eggs, coconut oil, vanilla essence and date paste until smooth.
- Gradually add in the dry ingredients, about a 1/3 at a time and allow it to be thoroughly mixed before adding more.
- Divide the mixture equally between the 2 cake tins and place them on the middle shelf of the oven.
- Bake the cakes for 15 minutes or until golden or a skewer comes out clean.
- Leave to cool in the tins for 5 minutes before turning out onto a cooling rack to cool completely.
- Meanwhile, make the jam. Add the raspberries to a pan and cook over a medium heat until the fruit breaks down.
- Add the cornflour a teaspoon at a time, stirring continuously with a whisk and until it is well combined.
- Gradually add a little water until your jam reaches a good, thick consistency. This will vary depending on your preference.
- I pushed my jam through a sieve to make it smooth and child friendly, but otherwise pour the jam into a cold dish and allow to cool before putting in the fridge to set.
- Now you can make your buttercream icing. The sweet potato should be cooked and cooled at this stage. Scoop out the flesh and mash.
- In a saucepan, melt the coconut oil and gradually whisk in the cocoa powder to make a syrup. When fully combined, remove from the heat and leave to cool.
- Add the dates and milk to a food processor and blend to a smooth paste.
- Add the mashed potato, nut butter, vanilla essence into the processor and mix thoroughly.
- Finally, add the chocolate syrup and mix until smooth.
- And so you can now assemble your cake! If necessary, use a cake or bread knife to give the cakes a flat top.
- Place one cake top down on a serving plate or dish. Spread a generous layer of jam carefully over the cake.
- Next gently spread 1/2 of the buttercream all over.
- Put the second cake on top, and finish with the remaining buttercream.
- Decorate with cocoa nibs, fresh raspberries and desiccated coconut.
Serve and enjoy!