S’mores Overnight Weetabix Recipe

This s’mores overnight Weetabix recipe is what happens when a campfire dessert grows up and starts meal prepping.

It’s cold, creamy, chocolatey, and still somehow feels like a proper breakfast, not just a sweet idea that leaves you hungry an hour later.

The texture is the real flex too.

Overnight, everything settles into that thick, spoonable, dessert-in-a-jar vibe that feels like a treat you’d order, not something you made half asleep in five minutes.

And even though it tastes like nostalgia in a jar, it’s stacked with around 46g of protein, so it actually keeps you full and satisfied right through the morning.

If you love the idea of waking up to something that hits all the s’mores flavours without the mess, the fire, or the effort, this one’s for you.

The best part is how easy it is to throw together.

Why You Will Love S’mores Overnight Weetabix

This is one of those overnight Weetabix recipe ideas that just makes mornings feel a bit less serious.

Full dessert energy, but with none of the effort.

Just a jar in the fridge doing the hard work while you get on with your life. It tastes like a proper s’mores style dessert, but it still counts as breakfast.

What I love about this one is that every layer is pulling its weight.

The caramel protein base turns soft and slightly fudgy overnight, like it’s gone from cereal to cookie dough while you slept.

Then the marshmallow yoghurt layer comes in all sweet and fluffy, giving you that toasted marshmallow vibe without it being sickly.

And the top is where it gets fun.

Chocolate sauce, crushed biscuits, little marshmallow bits. That’s the “okay wow” moment when you take the first spoonful and realise it actually tastes like the real thing.

It also keeps you full, which always surprises people. Around 46g of protein means it’s not just a sweet treat pretending to be breakfast. It actually holds you through the morning without that sugar crash.

S’mores Overnight Weetabix Ingredients

Before you start building this s’mores overnight weetabix recipe, it helps to understand what each layer is actually doing. Nothing here is complicated, but each part has a job, and once you get that, it’s really easy to tweak it to your own taste.

The Weetabix Base

This is the foundation and where all that soft, dessert-like texture starts.

The Weetabix breaks down overnight into a spongey base that holds everything together. The almond milk helps it soften without going watery. The caramel protein powder (I use MyProtein Salted Caramel Impact Whey) is what gives it that sweet toffee style flavour and also bumps up the protein so it actually keeps you full. The banana adds natural sweetness and a slightly creamy texture that makes the base feel more like dessert than breakfast.

The Yogurt Middle

This is your marshmallow-style layer.

The Greek yoghurt (I use Fage 0% Fat) gives you thickness and creaminess, but on its own it can taste sharp, so the sugars smooth it out and give it that sweet shop marshmallow vibe.

The vanilla ties it all together and makes it feel softer and more “dessert like” rather than tangy yogurt.

The Chocolate Top

This is where it all comes together and starts to feel like a proper s’mores dessert. The Dairy Milk chocolate gets melted down with a little milk to turn it into a quick, glossy sauce that drizzles into the layers underneath instead of just sitting on top.

The digestive biscuit adds that classic crunch and slightly buttery biscuit flavour that gives you the “campfire biscuit” feeling without needing anything fancy.

The marshmallow pieces are what really sell it though, because they soften slightly from the warmth of everything else but still keep that sticky, chewy texture that makes it feel like a real s’mores moment in every bite.

Storing Your Overnight Weetabix

This is one of those overnight Weetabix recipes that you will probably want to eat the second it’s finished, but it really does benefit from a bit of patience in the fridge.

If you are looking for some overnight weetabix jars, I got these from Amazon.

Once everything is layered up, you need to give it at least 2 hours to set so the Weetabix can soften properly and everything starts to come together. If you try to dig in too early, it can still feel a bit separated, and you won’t get that full s’mores-style texture where everything blends into one soft, creamy spoonful.

Ideally though, this is best left overnight.

That extra time in the fridge is what turns it from “nice layered breakfast” into something that actually feels like a dessert jar. The base goes softer and more cake like, the yogurt layer thickens slightly, and the chocolate topping settles into everything underneath so each bite has a bit of everything going on.

If you’re prepping this for the next morning, you can assemble it the night before and just leave it covered in the fridge ready to go.

That’s when it really works best because you wake up to something that already feels like a treat waiting for you, which is kind of the whole point of this overnight Weetabix recipe.

Making Your S’mores Overnight Weetabix Recipe Better

The nice thing about this S’mores overnight Weetabix recipe is the idea never really changes, but you can mess about with it depending on what you’ve got in or what you’re in the mood for.

You’re not trying to reinvent the flavour.

It’s more like fine-tuning the texture, the sweetness, and how filling it is.

If you want it richer and more dessert like, swap the almond milk for regular milk, or add a wee splash of cream to the base. It makes the Weetabix soften into something thicker and more indulgent. If you want it lighter, ease back a bit on the protein powder and add a touch more milk so it stays softer and less dense.

The yoghurt layer is dead flexible too.

If you don’t have a sweet tooth first thing, skip the icing sugar and let the vanilla and brown sugar do their thing. If you want it closer to that marshmallow vibe, bump the vanilla slightly and whisk it a bit longer so it turns smoother and fluffier. I actually use a hand mixer, if you know me, you know how weird I am with liquidy lumps.

It’s probably a bit overkill but important for me.

The topping is where you can really choose your own adventure.

More crunch?

Add extra biscuit and keep some chunks bigger so they stay crisp. More melty and blended? Warm the chocolate a little more so it drizzles down into the layers.