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Divine Carrot Cake Rocky Road Recipe

By sophie on May 12, 2026

A close-up of a slice of Carrot Cake Rocky Road, topped with white icing, walnuts, and mini marshmallows.

Right then, gather ’round because I’ve got a cracker for you today! If you’re anything like me, you adore a good bake, and who better to take inspiration from than the queen herself, Mary Berry? Well, I’ve gone and done it – I’ve combined two of my absolute favourite treats into one utterly delightful no-bake wonder: the Carrot Cake Rocky Road Inspired by Mary Berry. It all came about one rainy afternoon when I was rummaging through my cupboards, a real Mary Berry sort of mission, and realised I had all the bits and bobs. Honestly, it’s the easiest thing to whip up, and the taste is just divine!

Why You’ll Love This Carrot Cake Rocky Road

  • It’s a total breeze – literally no baking involved!
  • That dreamy carrot cake flavour with warm spices and sweet white chocolate.
  • A lovely mix of chewy marshmallows, crunchy walnuts, and a biscuity base.
  • Perfect for parties, afternoon treats, or just because you deserve it!

Ingredients for Your Carrot Cake Rocky Road

  • 200g digestive biscuits, roughly crushed
  • 100g mini marshmallows
  • 400g white chocolate, chopped
  • 100g walnuts, roughly chopped
  • 100g carrots, finely grated and squeezed dry
  • ¼ teaspoon ground nutmeg
  • ¼ teaspoon ground cinnamon
  • 200g white chocolate, chopped
  • ½ tablespoon vegetable oil
  • Extra mini marshmallows
  • Extra walnuts, chopped

Crafting Your Carrot Cake Rocky Road: Step-by-Step

Right, let’s get down to it! First things first, get your 8-inch square baking tin ready. Line it with baking parchment, making sure there’s a bit hanging over the sides. This just makes it a doddle to lift out later, saves any sticking dramas, you know.

In your biggest mixing bowl, chuck in the crushed digestive biscuits, those lovely little mini marshmallows, your roughly chopped walnuts, and the finely grated carrots. Now, here’s a little tip from me: give those carrots a really good squeeze to get rid of any excess water. Trust me, it makes all the difference to the texture – keeps it chewy and not at all soggy. It’s similar to how you’d prepare carrots for a classic carrot cake, to be honest!

Next up, the white chocolate for our base. Pop 400g of it into a heatproof bowl. Balance that bowl over a saucepan of gently simmering water – no boiling, just a lazy simmer! Stir it round and round until it’s all melted and lovely and smooth. Once it’s done, take it off the heat and stir in that warming nutmeg and cinnamon. Oh, the smell alone is gorgeous!

Pour this beautifully spiced, melted chocolate over your biscuit and carrot mixture. Give it a gentle stir with a spatula until absolutely everything is coated. You want to see all those lovely bits peeking through the chocolate. Then, spoon this lot into your prepared tin. Use the back of your spoon to press it down really firmly and evenly. No lumps or bumps allowed, we want a neat base for our Carrot Cake Rocky Road!

Now for the topping. Get another clean heatproof bowl and put your remaining 200g of white chocolate in there, along with that half tablespoon of vegetable oil. Melt this gently over the simmering water again, just like before, until it’s smooth and gloriously glossy. Pour this over the base layer and spread it out right to the edges so you’ve got a perfect top.

Close-up of delicious Carrot Cake Rocky Road slices topped with marshmallows and walnuts.

While that topping is still soft, scatter over those extra mini marshmallows and chopped walnuts. They’ll stick beautifully and give it that classic rocky road look. Pop the whole tin into the fridge for at least 3 hours. You need to be patient here, it’s got to be properly set before you can cut it.

A close-up of a slice of Carrot Cake Rocky Road, topped with white chocolate, marshmallows, walnuts, and dried raspberries.

Once it’s firm, carefully lift the whole thing out of the tin using the overhanging baking paper. Slice it into 16 squares. Perfect!

Serving Suggestions for Your Carrot Cake Rocky Road

This carrot cake rocky road is pretty darn perfect on its own, but if you fancy jazzing things up a bit, try these:

With a Cup of Tea: Honestly, what’s better than a nice cup of tea and a sweet treat? It’s the classic British way, and this rocky road is just the ticket. It’s just like having a slice of cake but without all the faff!

Alongside Creamy Coffee Mousse: For a proper ‘get dessert absolutely sorted’ moment, why not pair it with some smooth coffee mousse? The rich coffee flavour cuts through the sweetness beautifully.

With a Dollop of Cream Cheese Frosting: If you’re really leaning into the carrot cake theme, a little swirl of cream cheese frosting on the side is *divine*. It just adds that extra tangy, creamy layer.

Storing and Reheating Your Carrot Cake Rocky Road

So, you’ve made this absolute stunner of a Carrot Cake Rocky Road, and you want to keep it perfect, right? Easy peasy. Just pop it into an airtight container. Honestly, it’ll keep beautifully in the fridge for up to 5 days. That said, it never usually lasts that long in my house, it’s just too tempting!

This is also brilliant for a bit of meal prep. You can make a batch at the start of the week, cut it up, and have your little sweet treats ready to go whenever a craving strikes. Just wrap it up well before popping it in the fridge.

Frequently Asked Questions About Carrot Cake Rocky Road

Got a question about my delightful Carrot Cake Rocky Road? You’ve come to the right place! Here are a few things people often wonder about this lovely no-bake treat.

Can I substitute the biscuits in this Carrot Cake Rocky Road?

Absolutely! If you can’t find digestive biscuits, Rich Tea or even shortbread biscuits would work a treat. Just give them a good crush!

How do I ensure my Carrot Cake Rocky Road sets properly?

The key is to make sure those carrots are squeezed really dry, and then give it that full 3 hours (or more!) in the fridge. Patience is a virtue here!

Can I add other ingredients to this Carrot Cake Rocky Road?

Definitely! A handful of raisins or a sprinkle of desiccated coconut would be lovely additions. You could even mix in some chopped candied ginger for an extra zing, much like you might find in a vegan carrot cake.

Before You Go

Right then, I do hope you’ll give this absolute dream of a Carrot Cake Rocky Road a go! It’s such a simple pleasure, and I’d love to hear what you think. Please do leave me a comment below or share your creations with me on Pinterest – happy baking!

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A close-up of a slice of Carrot Cake Rocky Road, topped with white chocolate, walnuts, and mini marshmallows.

Carrot Cake Rocky Road


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  • Author: sophie
  • Total Time: 3 hours 10 minutes
  • Yield: 16 servings
  • Diet: Vegetarian

Description

This carrot cake rocky road combines white chocolate, walnuts, marshmallows, and warm spices in an easy no bake dessert bar.


Ingredients

  • 200 g digestive biscuits, roughly crushed
  • 100 g mini marshmallows
  • 400 g white chocolate, chopped
  • 100 g walnuts, roughly chopped
  • 100 g carrots, finely grated and squeezed dry
  • ¼ teaspoon ground nutmeg
  • ¼ teaspoon ground cinnamon
  • 200 g white chocolate, chopped
  • ½ tablespoon vegetable oil
  • Extra mini marshmallows
  • Extra walnuts, chopped


Instructions

  1. Line an 8 inch square baking tin with baking paper, leaving some overhang for easy lifting.
  2. Add the crushed digestive biscuits, mini marshmallows, chopped walnuts, and grated carrots to a large mixing bowl.
  3. Place the white chocolate into a heatproof bowl over a saucepan of gently simmering water. Stir until melted and smooth.
  4. Remove the bowl from the heat and stir in the ground nutmeg and cinnamon.
  5. Pour the melted chocolate mixture over the biscuit mixture and stir gently until everything is evenly coated.
  6. Transfer the mixture into the prepared tin and press it down firmly into an even layer using the back of a spoon.
  7. Add the remaining white chocolate and vegetable oil to a clean heatproof bowl. Melt gently until smooth and glossy.
  8. Pour the topping over the rocky road layer and spread evenly to the edges.
  9. Scatter extra mini marshmallows and chopped walnuts over the top while the chocolate is still soft.
  10. Refrigerate for at least 3 hours until fully set.
  11. Remove from the tin and cut into 16 squares before serving.

Notes

  • Squeezing excess moisture from the carrots helps the rocky road set properly and keeps the texture chewy rather than soft.
  • Store chilled in an airtight container for up to 5 days.
  • Prep Time: 10 min
  • Cook Time: 0 min
  • Category: Dessert
  • Method: No Bake
  • Cuisine: British

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