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If you are looking for a cake that is luxurious, but simple, without any complicated decorating, this is the cake for you. This caramel cake features an easy to make brown sugar sponge, and is topped with a homemade caramel sauce, turned into a whipped filling and topping for a light texture packed full of flavour.

Notes from The Patisserie

This cake is a mixture of all things I adore, and yet it’s quite simple. If you are a caramel lover like me, this whipped caramel cake is going to become an instant favourite. With two layers of soft and fluffy brown sugar sponges that are sandwiched with a whipped caramel, you will adore it.

The combination of a brown sugar cake and a homemade caramel (with an optional addition of salt) creates a light and moist cake that isn’t heavy to eat, it’s beautifully golden and is great for all occasions. Whether you want to bake for a birthday, a celebration, because you just fancy a cake or even an afternoon tea, it’s ideal.

You will love this recipe because it’s made with simple ingredients, you have learnt a new skill in making caramel (if you haven’t before) and discovering a wonderful alternative to buttercream or ganache.

Making the brown sugar cake

For a cake like this, you have five simple ingredients that are easily accessible, or easy to create yourself at home. You can find the full recipe in the recipe card below

  • Butter – for a sponge mix, you can use a block unsalted butter at room temperature, or you can use a baking spread/margarine. Both work totally fine so it’s down to personal preference
  • Sugar – for the best flavour, it’s ideal to use either light brown soft sugar, or dark brown soft sugar, or even a 50/50 mix of the two so you are somewhere in the middle of the flavour profile. I used light brown as I always have it in the cupboards and I like the taste.
  • Eggs – I used medium eggs, so I used five. If you have large eggs, I would use four
  • Flour – I used self raising flour as it’s a readily available ingredient in the UK and ideal of a simple cake sponge like this. You can use plain flour and baking powder to make your own, but I would use plain flour + 2 teaspoons of baking powder, whisked into the flour before using in the cake mixture
  • Buttermilk – this add’s a world of moisture to your sponge, but you do not have to buy it. You can if you want, and that is totally fine, but I find it easier to use whole milk + 1 tsp of lemon juice. I add the lemon juice to the milk and let it sit for 5 minutes before using in the recipe

A delightful homemade caramel sauce

I will say that I have not tested the recipe using a pre-made caramel, and seeing how that whips. I always wanted to make my own and I think you should all make your own as well.

  • Sugar – when making a caramel I always use granulated sugar. It’s typically the cheapest caramel to buy, and works wonders in a caramel sauce.
  • Water – It’s important to measure this accurately. I use scales, as the gram weight is the same as the ml measure for water – so I weigh 75g of water into a bowl.
  • Cream – I use double cream – this fat content is important for whipping the caramel later on – use authentic cream and not a long-life cream as it’s not as good.
  • Butter – it’s important to use real block butter for a sauce like this. You need pure butter and not a spread that is made of oils for a caramel sauce
  • Vanilla – the vanilla is optional, but I love adding a dash of vanilla bean extract for the flecks of vanilla throughout the caramel, but also the balance of flavour it brings to the caramel
  • Salt – the salt is also optional, but personally I love the balance it brings. I tend to use sea salt, and if you are nervous – only add a tiny bit. It just helps balance the natural sweetness

Assembling and decorating a cake

The caramel itself may seem super complicated to some, but I have purposely tried to make it as simple as possible to make. Once you have successfully made it, you must let it sit and thicken to be able to be whipped.

I generally make my caramel whilst my cake is in the oven, so it can set and cool whilst the cake also cools. You can speed it up by putting the room temperature caramel in the fridge, and trying to whip it every now and again until it thickens and holds itself.

Once thickened, I spread half of the whipped caramel over the first sponge, layer on the second sponge, and then spread the last half on top. I swirl through a little caramel sauce I took out of the bowl after it was made, but this is optional.

The whipped caramel can be used to pipe, but as it’s quite soft it may compress down a bit if you add anything heavy on top (such as for the middle layer of cake). It works wonderfully for other desserts, cupcakes, or even to dip apples into if you want.

FAQs

Can I use shop bought caramel?

You need to make your own – shop bought caramel has different ingredients and may likely not whip in the same way.

Can I use caster sugar for the caramel?

You can, you just need to keep more of an eye on it as it will melt quicker due to the smaller granules of sugar

Do I need to use the buttermilk?

No, it is optional – I just like the added moisture it brings to the sponge.

Can I use the whipped caramel inside a different cake?

Definitely! The whipped caramel is amazing as an added extra to nearly all other cakes – it pairs wonderfully with chocolate ganache.

My caramel has crystallised, how can I rescue it?

If the caramel is grainy or full of sugar lumps, you can try adding it to the pan on a low heat. Take a while to stir and heat the sauce to hopefully help the crystals dissolve (you may need to add 1-2 tbsp of water to help)

My caramel went lumpy after adding the cream – help?!

If the cream was too cold, it can seize into lumps when added to the hot mixture. Put the pan back on a low heat and whisk gently for 5+ minutes and hopefully the lumps will melt into the sauce

Caramel Cake with Whipped Caramel Recipe

A deliciously simple five ingredient caramel sponge cake with a homemade caramel sauce turned into a whipped caramel filling and topping
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Category: Cake
Type: Cakes
Keyword: Caramel, Salted Caramel
Prep Time: 1 hour
Cook Time: 35 minutes
Cooling/setting: 2 hours
Total Time: 3 hours 35 minutes
Servings: 12 slices
Author: Jane’s Patisserie

Ingredients

Cake

  • 275 g unsalted butter/baking spread
  • 275 g light/dark brown soft sugar
  • 5 medium eggs
  • 275 g self raising flour
  • 75 ml buttermilk (see blog post to make your own)

Caramel sauce/whipped caramel

  • 250 g granulated sugar
  • 75 ml water
  • 200 ml double cream
  • 50 g unsalted butter (not baking spread)
  • 1 tsp vanilla extract (optional)
  • 0.5-1 tsp sea salt (optional)

Instructions

  • Preheat the oven to 180ºc/160ºc fan and line two round 8” tins with parchment
  • Beat together the butter and sugar until fluffy
  • Add the eggs, and flour, and buttermilk and mix
  • Split between the two tins
  • Bake for 30-35 minutes, and cool fully
  • Whilst the cake cools, add the sugar and water to a pan
  • Heat on a low heat, stirring gently, until the mixture isn’t cloudy anymore and the sugar has dissolved
  • Stop stirring, and turn up the heat to boil
  • Boil until the mixture becomes a deep amber colour – keep an eye on it as it takes a while, and will suddenly start turning
  • Remove from the heat and mix in the butter – it'll bubble quite a lot but keep whisking
  • Add in the cream and whisk again
  • Add the vanilla/salt and stir through
  • Leave to cool fully for a few hours so it starts to thicken (reserve a little for decoration if you want)
  • Once fully cooled, whip the caramel for a few minutes until it holds itself and lightens in colour
  • Spread over the bottom cake, and the top cake, and add any extra caramel if you want

Notes

  • This cake is safe to store at room temperature on a cool day for 2-3 days
  • On a super hot day it may need to be stored in the fridge so that the caramel doesn’t melt 
  • Over time the whipped caramel may relax slightly 
  • The cake can freeze for 3+ months 

Storage and freezing

This cake and the whipped caramel is safe to store at room temperature on a cooler day, for 2-3 days – the whipped caramel is safe on it’s own to stay in the fridge to retain a firmer texture however if you only make that.

The cake can freeze for 3+ months, and I would thaw it in the fridge overnight.

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