These little sponge slices use light brown sugar instead of caster sugar to give a slight toffee flavour and are topped with butterscotch flavoured swiss buttercream. I also added little pieces of fudge for decoration but you could omit this or add something different if you wanted.
For this recipe I used my tried and tested sponge recipe which I always measure in ounces rather than grams (this is how I was taught by my Mama) but converted to metric measures it is 55 grams of everything (2 ounces) per egg.
Recipe makes 24 individual slices or 1 large teared cake.
For the sponge you will need:
- 10 oz light brown sugar
- 10 oz unsalted butter or margarine
- 5 large eggs
- 10 oz self raising flour
For the butterscotch sauce:
- 190g golden syrup
- 210g caster sugar
- 150g light brown sugar
- 60ml cream or milk
- 240ml water
For the swiss buttercream:
- 3 large egg whites
- 250g caster sugar
- 375g unsalted butter
This recipe did make enough to ice all of my sponge fingers and left a lot behind so you could halve the quantities for the buttercream and sauce to avoid waste - or do as I'm doing, making another quantity of sponge so that my Mum can treat her work colleagues too! If I wasn't doing this I planned to make a biscuit base (crumbled digestive biscuits and melted butter), layering on bananas and topping with the left over buttercream to construct a 'banoffe pie' of sorts.
To decorate:
- Fudge - cut into small pieces
To make the sponge:
- Make the sponge using the creaming method - this means beating the butter and sugar until light and fluffy before gradually adding the egg and then sifting the flour and gently folding it in. Making a sponge is as simple as that!
- I then spooned my mixture into a lined individual loaf tin. If you don't have one of these you could make them into cupcakes or make a two teared cake sandwiched with the buttercream.
- Cook the cakes for about 15 minutes (longer is making a teared cake) at 180c (fan). Once cooked allow to cool completely before decorating.
To make the butterscotch sauce:
- Put the sugars, golden syrup and water into a plan. Bring the mixture to the boil and allow to bubble for a couple of minutes to ensure the sugars are completely dissolved.
- You can test to see if it has boiled for long enough by dripping a small amount into really cold water - if it forms little balls in the water it is done.
- Remove from the heat and stir in the butter before returning to the heat to boil for 3 minutes.
- Then add the cream / milk - I forgot to buy cream to I just used the 1% fat milk we had in the fridge which worked just fine. As its such a small amount you need I wouldn't bother buying cream just of 60ml.
- Allow to cool completely - it will start to thicken slightly as it cools.
To make the swiss buttercream:
- This recipe and method comes from Ed Kimber's Patisserie Made Simple.
- Put the egg whites and sugar in a heat proof bowl over gently simmering water. Whisk gently until the sugar dissolves.
Gently whisk to prevent the egg whites from cooking |
The buttercream is thick but very light and fluffy |
- To test the mixture is ready dip your index finger in and rub it against your thumb - you shouldn't be able to feel any sugar granules. If you can, keep going for a little longer. If you have a thermometer it should read 60c.
- Transfer the mixture to a freestanding mixture with a whisk attachment, or just use an electric whisk and whisk until the mixture is cold, glossy and forms stiff peaks (approximately 8 minutes).
- Whisk in the butter and then whisk in the cooled butterscotch sauce.
Refrigerate any left over buttercream in a sealed container and use within a couple of days.
And that's all there is too it! My Dad is normally a harsh baking critic but he loved these little treats and had no constructive criticism at all - on this occasion!
Happy baking - let me know how you get on!
Rach x
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