Kate’s Sticky Toffee Apple Caramel Cake

When Prue, one of the judges of the Great British Bake Off, said in Season 8 that Kate’s sticky toffee apple caramel cake was the best cake she had ever eaten, I wanted to try it. And when the list of bakes in the reddit 52 week baking challenge included GBBO, I knew that this was it.

Spoiler (July 20, 2022): That cake in the photo is not Kate’s cake. It’s mine. I found Kate’s recipe to be challenging and definitely not the best cake I had ever eaten.

So I am in the process of working on an apple caramel cake. Please sign up for my newsletter to be the one of the first to know when I share the recipe!

two pieces of applesauce cake on plates with forks and a milk glass.

Back to Kate’s recipe

If you look at the recipe and you are an American baker, there are a few things you notice.

First, weights are listed in grams. Between the 325 grams in the cake and 175 grams in buttercream, how much butter is that? It’s better that you not know.

But no problem. My kitchen scale toggles between ounces and grams.

Ingredients in Kate’s cake and substitutions

Here is the list of ingredients, with my interpretations and substitutions. I made an I-can’t-believe-I-did-that mistake of forgetting the salt when converting from self-rising flour. Doh!


125 grams medjool dates
5 tablespoons “cloudy apple juice” – apple cider
325 grams unsalted butter, softened
250 grams light muscovado sugar – I used dark muscovado
5 eggs
300 grams self-raising flour – bleached all purpose + 1 tablespoon baking powder
Don’t forget a 1/2 teaspoon salt!
1/4 teaspoon baking powder
2 teaspoon ground cinnamon
2 teaspoon ground mixed spice – 1/8 teaspoon (each) all-spice, cloves, ginger, nutmeg
60 grams dried apple

Caramel buttercream

175 grams golden caster sugar – granulated sugar
175 grams double cream – heavy cream
175 grams unsalted butter
100 grams icing sugar = confectioners’ sugar
125 grams cream cheese
1 1/2 teaspoons vanilla

Toffee apples

2 bramley apples – I have no idea what Bramley apples are
175 grams golden caster sugar

Making the cake

The cake uses the creaming method. With five eggs, the batter ended up very thick, and I added a tablespoon of whole milk to thin it out.

Next problem: I only have two 8″ cake pans. No problem. Use two pans and wait for one to cool enough to wash, dry, butter, line, and repeat. It would have worked in two 9″ cake pans.

Making the buttercream

My buttercream was a lot darker in color than the image in the link, and there was barely enough to frost the cake. Maybe thick frosting is an American thing?

Making the toffee apples

I slightly burnt the caramel for the toffee apples, and, instead of doing them again, I just let kiddo decorate the cake with sprinkles.

a piece of sticky toffee apple cake on a plate with newspaper and cup of coffee.

The result

Outcome: the cake was dense but moist and perfectly spiced. But this was not “the best cake I’ve ever eaten.” There were large holes – from my not chopping the dried apples enough? Too much baking soda? Too much gluten?

Five eggs seemed like a lot, and I wonder if UK and US eggs are the same size.

FAQs about Kate’s Sticky Toffee Apple Caramel Cake

Do I have to weigh my ingredients?

No, you don’t have to do anything. But I do want you to know that you will get better and more consistent results if you weigh your ingredients, especially for baking.

Can I freeze this cake?

Absolutely. Just double wrap the apple cake tightly in plastic wrap, put it in a freezer bag, and squeeze out all of the air. To defrost, just let it slowly come to room temperature.

Related recipes

If I make Kate’s apple cake recipe again, I won’t omit the salt, and I’ll use cake flour. Or perhaps I’ll just make another cake from the uglyducklingbakery cake archives like this sourdough discard apple cake instead.

And I’ll keep working on my own apple layer cake recipe to share ASAP with newsletter subscribers.

What’s next?

If you make Kate’s apple cake or have any questions about my experience making it, please leave a comment or send me a message.

Or send me a note about how glad you are that we don’t have to work with chocolate on super hot days or create a three-dimensional baking sculpture for a Tudor table. I, personally, will be forever grateful for the introduction to babka in Season 3.

Follow uglyducklingbakery on your favorite social media platform.

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Reddit 52 weeks of baking challenges:
Week 1: New Year new recipe – blueberry galette
Week 2: seasonal – Smitten Kitchen’s grapefruit pound cake
Week 3: Great British Bake Off – Kate’s sticky toffee apple caramel cake
Week 4: Australia – sausage rolls
Week 5: bite sized – cookies
Week 6: Chinese New Year – mushroom bao
Week 7: new tool – baguette baker
Week 8: chocolate – chocolate peanut butter bonbons
Week 9: timed bake – under 1 hour! chocolate chip scones
Week 10: allergy/diet restriction – macarons
Week 11: quick breads – kale and cheese quick bread
Week 12: signature bake – purple cow bread
Week 13: enriched breads (kale and cheese babka fail)
Week 14: childhood favorite –fudgy triple layer chocolate cake with chocolate ganache frosting
Week 15: decorating challenge – purple velvet cake
Week 16: crispy crunchy – bacon cheddar popcorn
Week 17: p52 of your favorite cookbook, or your favorite blog – chocolate peanut butter drip cake
Week 18: pâte à choux – bacon cheese puffs
Week 19: veggies turned sweet – red velvet beet waffles
Week 20: plating – chocolate chip cookie (butter challenge)
Week 21: Birthday Party! – chocolate orange cake
Weed 22: Scandinavian – Swedish apple cake (plus a bonus sourdough discard apple cake)
Week 23: Layers – Pecan apple oat bars (post is pending)
Week 24: Tarts – rainbow fruit tart

a dinosaur cookie jar overlooking Kate's apple toffee cake.


  1. Hello Joanne,

    I am about to make this cake for Thanksgiving and I am wondering how to best store this cake. Can you leave it out on the countertop or should you store it in the fridge?


    1. Hi Sarah, if you’re making the GBBO cake, it looks like they suggest making it the night before and leaving it overnight, but it’s not clear to me whether it’s in the fridge or not. If you’re making my apple cake, that cake can be left out on the countertop.

  2. I also made this cake and used a similar amount of baking powder with all-purpose flour. Like you I found it tasty but a little more dense than I would consider ideal. I looked up some similar recipes and also some for making your own self-raising flour, and I think more leavening is needed. About 4-5 t baking powder total. Alternatively, adding some baking soda in with the date mixture, as David Lebovitz does in his recipe for sticky toffee pudding might be a good idea. That’s what I’m going to try next.

    1. Thanks for the comment. I’d love to hear how your next version comes out. It’s hard to imagine how the recipe I made could have received as much praise as there was for Kate’s cake on the show. Happy baking!

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