Chocolate Fridge Cake – Digestive biscuit pieces, and mini marshmallows coated in a creamy, thick dark chocolate. The perfect no-bake treat!

Do I have a treat for you guys today! Today’s recipe consists of broken Digestive biscuit pieces, mini marshmallows, and lots and lots of dark chocolate. What’s not to love??
This no-bake, indulgent treat is super quick and easy to make. Prepped in about 15 minutes, and left to set in the fridge for 2 – 3 hours. This is the perfect treat to serve when you don’t want to turn on the oven on a hot summer’s day, and everyone will love it!
Ingredients for Chocolate Fridge Cake:
- dark chocolate (or milk, or semi-sweet!)
- unsalted butter
- golden syrup
- digestive bisuits
- mini marshmallows
To make this no-bake chocolate dessert, simply melt together the chocolate, butter, and golden syrup. Allow to cool for about 10 minutes. Next, stir in the crushed biscuits and marshmallows, then spread out into a loaf pan lined with parchment paper or foil. Chill until completely set – about 2 – 3 hours.
To get a nice, thick layer of chocolate on top (as pictured), simply reserve a little of the chocolate mixture (before adding biscuits), then spread it on top once everything is in the pan.
One of the BEST chocolate desserts you’ll ever try. I promise!
Try these no-bake desserts next!
- No-Bake Peanut Butter Crunch Balls
- No-Bake Double Chocolate Cheesecake
- No-Bake White Chocolate Raspberry Cheesecake
- White Chocolate Torte
Need more chocolate? Try these too!
- Double Chocolate Banana Bread
- No-Churn Double Chocolate Ice Cream
- Chocolate Nesquik Milkshake
- Chocolate Peanut Butter Fudge
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Chocolate Fridge Cake
Ingredients
- 14 oz (400g) high quality dark chocolate, coarsely chopped
- ¾ cup (170g) unsalted butter, cubed
- ¼ cup (90g) golden syrup, corn syrup, honey, or agave
- 200 g digestive biscuits, broken into pieces (you can use graham crackers, shortbread cookies, or any other)
- 1 cup (60g) mini marshmallows
Instructions
- Line a 9×5-inch loaf pan with foil or parchment paper, and set aside.
- In a heat-proof bowl over a pan of simmering water, melt the chocolate, butter, and golden syrup. Remove from the heat, and allow to cool for 10 minutes.
- Stir in the biscuits, and then the marshmallows. Spread the mixture into the prepared pan, and refrigerate until set – about 2 – 3 hours, or overnight.
- Cut into slices and enjoy!
Recipe Notes
Nutrition Information:
Nutrition information is automatically calculated, so should only be used as an approximation.
Awesome stuff Marsha. So easy and quick. I cant wait to make it. Thank you for sharing.
This is probably the easiest cake I have ever made, the yummiest and the most decadent. The marshmallows are a lovely hidden surprise. Believe it or not, my parents demand I make this at least once a month. Thank you Marsha!
I’m so glad everyone enjoyed it! It’s a favourite in my house too 🙂
My mom makes something very similar to this but without the marshmallows – I like that addition! Hope all is well with you!
Thanks, Tara!
Marsha, this fridge cake looks sooooo good! You know I’m always in the mood for chocolate, so this sweet treat has my name all over it! Love that it’s so easy to make and super pretty too! Pinned, of course! Have a wonderful week! xo
Thanks, Demeter!
Chocolate cake in our fridge is a great dessert good for a longer period of time. Love ❤️ it!
Perfect summer dessert! I cannot believe how easy and quick this is to throw together! My boyfriend would loooove this!
What a deliciously decadent treat!
Oh wow, this cake looks so inviting and luscious, wish I could have a slice right now 🙂
This chocolate fridge cake treats to my eyes and tastebuds..so tempting. Your cake Pictures are drool worthy 🙂