Sweet Guide: Where to Buy the Best Marshmallows in the UK and How to Use Them

Why marshmallows deserve a permanent spot in your pantry

Marshmallows are the tiny, pillowy joy that sneak into hot chocolate, climb atop brownies, and glue together the perfect s’more. If you’ve ever paused at the sweets aisle and wondered which bag to grab, you’re not alone. From classic white puffs to giant toasted clouds, marshmallows are versatile, forgiving, and surprisingly creative. Whether you’re baking, crafting an indulgent dessert, or just craving a nostalgic snack, marshmallows are easy to work with and great fun to experiment on.

Top UK stores to buy marshmallows (and what to expect)

Not all marshmallows are created equal, and where you shop often determines size, texture, and flavours. Here’s a quick tour of reliable UK retailers you can check out—each one brings something different to the marshmallow table.

Tesco

Tesco is a go-to if you want variety without a long trek. You’ll usually find 10 oz and 14 oz bags of classic miniature and large marshmallows alongside branded options. Tesco Value packs are budget-friendly, while their finest lines sometimes include flavoured or extra-soft marshmallows perfect for desserts.

Sainsbury’s

Sainsbury’s stocks a decent range, from bite-size marshmallows for hot chocolate to jumbo versions for toasting. Look out for seasonal flavours at Halloween and Christmas—think peppermint or gingerbread-inspired coatings that give a festive twist.

Asda

Asda tends to offer good value in larger sizes like 1 lb bags, which are brilliant if you’re baking for a crowd or planning marshmallow-based recipes. Their own-brand marshmallows are soft and consistent, ideal for melting into sticky treats or folding into batter.

Morrisons

Morrisons often carries traditional and novelty shapes—hearts, stars, and themed packs—making them great for parties. They usually stock gourmet marshmallow options too, for when you want a slightly denser, chewier bite.

Waitrose & Partners

For premium marshmallows, Waitrose is a solid bet. Expect artisan-style options, higher cocoa or fruit inclusions, and sometimes hand-finished pieces. Packs might be a little smaller—say 6 oz to 8 oz—but they’re crafted for quality rather than quantity.

Ocado

Ocado is where you’ll find a huge online selection. From mainstream brands to indie confectioners, Ocado lists sizes ranging from small 3 oz trial packs to 1 lb family bags. It’s convenient if you want to compare multiple brands and have them sent to your doorstep.

Marks & Spencer

Marks & Spencer tends to stock more sophisticated and seasonal marshmallow creations—think chocolate-dipped marshmallows or premium flavoured varieties. They’re perfect for gifting or when you want something a bit dressier for a dessert plate.

Lakeland and speciality shops

If you’re serious about baking or want novelty marshmallows—giant 2 in. blocks, or skewered fondant-style pieces—speciality shops like Lakeland and independent sweet stores are worth a visit. They often supply bulk sizes and baking-friendly varieties that cut and melt cleanly.

Amazon UK and independent online sellers

Online marketplaces carry everything from artisan marshmallows to bulk 2 lb bags for events. The variety is unmatched, but pay attention to seller ratings and shipping sizes. Sometimes buying from a specialist sweet shop online gives you fresher, handmade options than mass-market sellers.

Types of marshmallows explained

You might think a marshmallow is a marshmallow, but texture, size, and ingredients change everything. Let’s unpack common types so you can pick the best one for your project.

Mini or “hot chocolate” marshmallows

These little 0.5 oz or smaller pieces are tailored for mugs and hot drinks. They melt fast and create a creamy foam on top, making them ideal for a 12 fl oz cup of cocoa. If you want that classic Instagram-worthy swirl, mini marshmallows are your friend.

Standard/large marshmallows

The classic 1 oz rounded puff is what most people picture. They toast evenly, sit well on cookies, and fold into recipes. For baking or roasting over a small fire pit, these are the most versatile size.

Jumbo marshmallows

Jumbo marshmallows can measure 1.5–2 in. across and are brilliant for dramatic s’mores or dipping in chocolate. They might come in 5 oz and 10 oz packs, great for parties or for turning a simple dessert into a statement.

Flavoured and gourmet marshmallows

Think fruity, coffee, chocolate-dipped, or spiced. Gourmet marshmallows often use higher-quality gelatin, real fruit purée, or chocolate coatings. They’re slightly denser, so they can be excellent in layered desserts where you want the marshmallow to hold its shape rather than melt away.

How to choose marshmallows for different recipes

Choosing the right marshmallow is like picking the right tool for a job. Are you making a gooey s’more or swirling them into batter? Here’s how to match the marshmallow to the task.

Baking (brownies, cookies, cakes)

Use standard or mini marshmallows. Minis disperse more evenly through batter and melt into pockets of sweetness, while larger pieces give you melty islands on the top of brownies. If you’re folding them into batter, freeze marshmallows briefly so they don’t completely dissolve during baking.

Melting (fudge, sauces)

Pick plain, white marshmallows or a brand known for good meltability. Avoid heavily coated or dipped marshmallows—those outer finishes can resist melting and leave lumps. A 12 oz bag usually yields a smooth, glossy sauce for a 2 lb batch of fudge.

Toasting and s’mores

Go big. Jumbo marshmallows toast to a golden, caramelised exterior and a molten centre that’s perfect for squishing between graham crackers. If you’re DIY-ing s’mores indoors, keep a 1 ft metal skewer or long-handled toasting fork handy to prevent singeing.

Storage and shelf life: getting the most from a bag

Marshmallows keep well, but the way you store them makes a big difference. Left in a humid cupboard, they can get sticky or stale. Here’s how to keep them fresh and fluffy.

Short-term storage

Keep opened bags sealed tightly with a clip or transfer to an airtight container. In a cool pantry, marshmallows can stay good for 1 to 3 months. If you live in a warmer area, refrigeration can help, but note that cold can make them firmer—bring them back to room temperature before using.

Freezing marshmallows

Yes, you can freeze marshmallows for longer storage. Place them in an airtight container or freezer bag; they’ll last up to 6 months. Thaw at room temperature for 30–60 minutes before use. They may feel slightly softer, but they’ll still perform well melted or in baking.

Allergy-friendly and vegan marshmallow options

Traditional marshmallows use gelatin, which is animal-derived, so vegans and some allergy-conscious shoppers need alternatives. Luckily, the UK market has options.

Vegan marshmallows

Many vegan marshmallows use agar-agar or carrageenan instead of gelatin. Brands like Dandies (available in some UK stores and online) replicate the classic texture using plant-based gelling agents. They behave similarly for hot chocolate and baking, though slight texture differences may be noticeable when toasting.

Free-from options

For gluten-free concerns, most plain marshmallows are naturally gluten-free, but always check labelling for cross-contamination warnings. For nut allergies, seek brands that clearly state “nut-free” on the package, and if buying from bulk bins, be cautious about shared scoops.

Budget buys vs gourmet marshmallows: which to pick?

There’s a time and place for both. Budget packs are perfect for family baking, topping desserts, or using in crafts. Gourmet marshmallows elevate a dessert plate or make a special gift. If you’re feeding a crowd for a bonfire, buy larger economy bags; for a dinner party, a small pack of artisan marshmallows gives that boutique feel.

When to splurge

Splurge if the marshmallow is a star—like a plated dessert, a gift box, or a feature in a gourmet recipe. The improved texture and flavour show through in small quantities, so a 6 oz pack can go a long way.

When to save

For campfire s’mores, kids’ baking sessions, or melting into hot chocolate by the jug, the value packs are the practical choice. Buy a 1 lb bag and you’ll have plenty for multiple uses without breaking the bank.

Easy homemade marshmallow recipe (quick and forgiving)

Want to try making marshmallows at home? It’s easier than it sounds, and the payoff—freshly cut, pillowy marshmallows—is huge. This simple recipe uses imperial measures and should yield a generous pan.

Ingredients

3/4 oz powdered gelatin (about 3 envelopes), 8 fl oz cold water (divided), 12 oz granulated sugar, 8 fl oz light corn syrup, 6 fl oz water for syrup, pinch of salt, 1/2 fl oz vanilla extract (about 1 tablespoon). Dusting: 4 oz confectioners’ sugar mixed with 2 oz cornstarch for coating.

Method

Sprinkle the gelatin over 4 fl oz of cold water and let bloom for 5 minutes. In a saucepan, combine sugar, corn syrup, 6 fl oz water, and salt; bring to a boil and cook until the syrup reaches 240°F. Remove from heat and slowly pour into the gelatin mixture while whisking on medium-high speed until the mixture triples in volume and becomes glossy—about 8–10 minutes. Mix in the vanilla. Pour into a 9 in. by 13 in. pan dusted with the sugar-starch mix, smooth the top, and let set for at least 4 hours at room temperature. Turn out, cut into squares, and dust all sides with the sugar-starch mix.

Toasting marshmallows safely (indoor and outdoor tips)

Nothing beats the smell of a perfectly toasted marshmallow, but safety matters. Here’s how to get that golden, gooey centre without a trip to the emergency room.

Outdoor toasting

Use long-handled skewers and keep a safe distance from the flame—around 6–12 in. Practice slow, steady rotation to caramelise rather than burn. Keep a pitcher of water or a bucket nearby, and supervise children at all times.

Indoor toasting and alternatives

If you’re indoors, a gas hob on low or a kitchen blowtorch works well. Alternatively, use the oven on broil for 30–60 seconds, watching closely. For smaller batches, put marshmallows on a skewer and hold them over a candle or tea-light, but be mindful of ventilation and keep a metal plate underneath to catch drips.

Final tips: pairing marshmallows with flavours and textures

Marshmallows are like a blank canvas. Pair them with intense flavours or crunchy textures to balance the chew and sweetness. Try dark chocolate and sea salt, toasted nuts, espresso, fruit compotes, or spice blends like cinnamon and nutmeg. Using contrasting textures—crumpled crackers or toasted oats—makes the marshmallow experience more interesting and satisfying.

Conclusion

Marshmallows are a small item with big possibilities. Whether you’re hunting for budget-friendly bags at supermarkets like Tesco and Asda, chasing artisan options at Waitrose or Lakeland, or ordering specialty flavours online, the UK market has you covered. Remember to match the marshmallow type to your recipe, store them properly, and don’t be afraid to make your own—fresh marshmallows are a delightful weekend project. Now go forth, pick a pack, and get creative. Toast one, melt one, or simply enjoy one straight from the bag—the cloud-like joy is guaranteed.