One of the things I love about winter is the abundance of citrus, so when I had a bowl of these ruby red grapefruits sitting around uneaten, I thought, why not make a citrus sponge?! It’s one of those cakes that looks pretty fancy, but isn’t difficult to make at all! The secret is making the sponge light and fluffy, and then anything you pair with it will instantly be elevated.
I love using ruby red grapefruits as they’re sweeter than normal grapefruit but still have some tartness without being too sour. You could, of course, substitute the grapefruit for oranges, lemon, lime, tangelo, cumquat, mandarin, pomelo or yuzu.
I’m going to try a yuzu version next as I’ve never had yuzu and I’m rather fascinated by it!
The sponge part of the recipe is based on the basic sponge cake from taste.com.au and it works really well every time, although, I find with almost every sponge cake I make, I can never seem to get the height I want in order to split it into 2. So, for this recipe, everything has been doubled so you have 2 decent sized sponge bases. If you want to go smaller and simpler, then just halve everything below or use the quantities in the Taste recipe link above.
2/3 cup plain flour
2/3 cup self raising flour
2/3 cup corn flour
1/2 teaspoon salt
8 x eggs (at room temperature)
1 & 1/4 cups of caster sugar
2 x 225g block of cream cheese (for filling)
1/2 cup of icing sugar
3 x large ruby red grapefruits
Pansies or other edible flowers for decoration
If you’re dairy intolerant or don’t like cream cheese then just do a straight forward citrus icing mixture (see below) by mixing 3-4 cups of icing sugar with a couple of tablespoons of the grapefruit juice (enough so it’s spreadable).
I really love this ruby grapefruit sponge as it’s a little different but also has that lovely, subtle sweet and tangy citrus flavour. It really would work beautifully with any citrus though so give it a try if you have a bowl full of citrus fruits that you don’t know what to do with!
And if you make it, please let me know how it turned out!
This looks and sounds amazing. I’m going to whip one up sometime soon. My mum was the queen of baking when I was growing up – all on a coal range – I don’t know how she did it with such variable temperatures but she did. Her sponges were legendary and she had a trick that ensured they were super light – it’s not for the faint-hearted! Once the batter is in the pans and before you pop them in the oveN, take a pan, hold it at hip height then let it fall to the ground! Then repeat with the other one. It forces air into the batter. Weird I know – and the potential for disaster is high on the first go or so – but it always worked a treat!
hahaha! Oh Jos I had a giggle reading that tip as I’ve never heard of it and how bizarre it worked?! Wonder if she dropped them one day by accident and found the sponge turned out lighter?!!! haha. I’m so intrigued i’m going to have to try that now – will have to make sure I drop it dead flat as I’d imagine a batter splatter would not be fun to clean up haha. Did it work for you when you did it? I love hearing baking stories from way back. Nicki xo
It totally worked Nicki but it takes precision and grit as it is a weird thing to do!!!!. I never thought twice about her little quirk until a friend was over one day and saw her do it thought the entire situation bizarre! Kudos to you on perfecting the sponge – it isn’t easy and pav can be tricky too – it takes time and patience. I’m impressed. (Side note – did you get a copy of the KRB cookbook that came out about four years ago? My son went there and I edited it. Such a beautiful book. Alexx told me you were in Nat’s year).
You really make it seem so easy together with your presentation however I find this topic to be actually one thing that I feel I’d by no means understand. It kind of feels too complicated and very vast for me. I’m taking a look ahead for your next post, I’ll try to get the grasp of it!
Don’t worry, I know what you mean! I was terrible at baking but the more I am practicing, the better, and easier, I am finding it. I’ve got a beautiful pavlova recipe coming up on the website soon and that is about the easiest thing you can ever make, so maybe that might be a good starting point for you? 🙂
Nicki this looks wonderful, the ruby grapefruit sounds just perfect! I’m a fan of winter citrus too, any citrus really 🙂
Thanks Sally! I’m certainly no recipe developer but thought why not try grapefruit instead of your typical orange and lemon. Yuzu is next, of course! x