
So here is a very easy, very tasty basic sponge cake recipe which uses the “all-in-one” method (seriously quick & foolproof). I’ve given quantities and cooking times for a variety of round and square cake tin sizes, as well as quantities to make enough buttercream to fill and cover a 2 tier cake. You can also vary the flavour of your cake and I have included suggestions and quantities for flavourings for both the cake and the icing.


Basic Sponge Cake
Method
- Grease and line your cake tins
- Preheat the oven to 150C (300F) fan oven for a single, deep cake, or 170C (340F) fan oven for 2 x shallow cakes. For non-fan assisted ovens, increase the cooking time by 10 degrees C (50F).
- Sift the flour into a mixing bowl and then add the rest of the ingredients (including your chosen flavourings). Using a stand mixer or hand whisk, combine all the ingredients together on a slow speed. Once the mix has come together, increase the speed and beat for one minute.
- Spoon the mixture into your prepared tin and smooth the top. Cook in the centre of the oven for the specified length of time.
- To test whether your cake is done, lightly press the middle of the cake – it should be golden brown spring back. A skewer inserted into the middle of the cake should come out clean. If it’s not quite done, cook for a further 5 minutes and check again.
- Leave the cake in the tin for 5 minutes before turning out onto a wire rack to cool.
Buttercream
Method – Buttercream
- Sift half the icing sugar into a bowl with the softened butter and beat until light and fluffy. Beat in the remaining icing sugar, then beat in the milk and/or flavourings.
- Continue beating until you achieve your desired consistency – the more air you beat in, the lighter and fluffier the icing will be.



PLEASE INCLUDE BAKING POWDER QUANITIES!
Hi Brenda- thanks for your question. There is no need for baking powder as the recipe uses self raising flour.
hello. I can’t enlarge th chart for cake big enough to read. My fone may just be slow
Hi Jayne, I think you will have to look at it on a PC or iPad. Sorry!
Please could you tell me the quantities for a 10inch square cake.
Many thanks
Kind regards
Chris
I’ve had a look online and I believe you need to multiply the ingredients for the 8” square cake by 1.56 to get the quantities for the square 10” cake. So you would need: 700g sf flour
625g sugar
625g butter
11 eggs
80ml milk.
Temperature and timings for a shallow cake should be about the same as for the 8” cake.
Hello, I am planning to use your cake calculator for a coffee and walnut sponge cake for a 60th birthday.
I plan to bake a 9 inch round cake.
I wonder if you could advise me how much coffee and walnuts i need?
Hi Louisa,
Apologies for the slow reply. I think you should find your answer again at https://cakesbylynz.com. She has a fabulous article on how to convert cake recipes for any size tin and gives the mathematical guidance you would need… https://cakesbylynz.com/index.php/2021/04/how-to-convert-cake-recipes-for-any-size-tin-or-cake-pan/
Hope this helps!
Hi I’m using a 9inch square tin would the measurements be the same as for the 10inch tin ( as advised above to a previous enquiry ) or do I need to adjust slightly ?
TIA
Liz
Hi Lizzie,
Thanks so much for your question. I’m afraid I’m feeling a bit out of my depth on these cake technicalities! I’m a very basic baker who can knock out a reasonable cake, but I’m very far from Bake Off standard and the more I investigate these baking conundrums, the more I realise how limited my knowledge is. However, I have come across an amazing website called Cakes by Lynx (https://cakesbylynz.com/) and I think you will find the correct advice and guidance there!
Best of luck and sorry I can’t be of more help,
Ruth
Hi Ruth
Thanks for responding
I’m the same baking wise ! As I need to decorate the cake tonight I’ve taken the plunge and used the measurements for the 9inch round cake and it seems to have worked OK 👍
I have the yearly task of baking my granddaughter’s birthday cake and this years brief from the nine year old to be tomorrow is for a Minecraft bee cake .
Wish me luck 😩
Lizzie x
I’m so glad it seems to have worked out! Minecraft bee cakes sounds like a challenge! I wonder what she’ll want next year…:)