If declared cocoa content leads your top-up choice, the M&S Collection Dark Chocolate with Mint bar states 85% minimum cocoa solids; check local stock before making a trip for it. For a different format, Waitrose Mint Thins state 55% cocoa solids, while After Eight offers wrapped peppermint fondants in a much larger box. If milk or gluten requirements determine the purchase, check the current pack: Sainsbury's describes its Taste the Difference Free From Dark Chocolate Mints as milk and gluten free, but a dark or vegan label alone does not establish allergy suitability.
If cocoa content matters to you, compare the percentage on the chocolate rather than relying on the word ‘dark’. The products described by Marks & Spencer, Waitrose & Partners, Tesco, Lindt UK and Sainsbury's have different stated minimums and formats.
A 100 g bar, a pack of thins and a 300 g box of wrapped fondants serve different plans. Decide whether the purchase is for a small treat or for serving several people.
Milk, soya, nuts and cereals containing gluten need product-specific attention. Read the current pack when an ingredient or precautionary allergen statement affects your choice.
Start with the type of mint chocolate you want, then compare the stated cocoa figure, pack size and current label for that exact product.
| Priority | What to check | Your needs |
|---|---|---|
| Cocoa content | Read the minimum cocoa-solids figure and whether it describes a bar or only the chocolate around a filling. Marks & Spencer states 85% for its Collection bar; Waitrose & Partners states 55% for Mint Thins. | I want a clearly stated cocoa percentage, not just dark-coloured packaging. A fondant centre may matter more to me than the percentage on its chocolate coating. |
| Pack and portions | Compare the quantity and how pieces are served. Tesco describes a 100 g bar with a one-square serving reference; Waitrose lists 27 servings for Mint Thins; Sainsbury's describes individually wrapped After Eight mints in a 300 g box. | For a quick top-up, a bar or thins may fit my plans better than a larger box. If I am serving mints after a meal, separate wrappers could be useful. |
| Ingredients and allergens | Check ingredients, highlighted allergens and ‘may contain’ statements on the current pack. Lindt UK lists milk fat and soya in its dark mint bar; Marks & Spencer calls its Collection bar vegan but says it is unsuitable for people with milk or nut allergies. | I need the label for the specific mint chocolate I am buying to meet my ingredient requirements. I cannot assume that ‘dark’ or ‘vegan’ means milk-allergy suitable. |
Sainsbury's states 43% minimum cocoa solids for After Eight, while Marks & Spencer states 85% for its Collection dark mint bar. The word ‘dark’ does not tell you which figure a product declares.
Read the cocoa-solids percentage and note whether the product is a solid bar or chocolate surrounding fondant.
Marks & Spencer labels its Collection bar vegan but says it is unsuitable for people with a milk allergy. Lindt UK lists milk fat in its dark mint bar.
For an allergy, use the current pack's ingredients and precautionary statements, not the colour or a general dietary description.
Sainsbury's describes After Eight as a 300 g box of wrapped mints, whereas the Tesco Finest and Lindt Excellence bars are 100 g each. The quantities suit different uses.
Choose the pack format for when and with whom you expect to eat the mints, before comparing products.
Ingredient and allergen statements are particularly important when milk, nuts, peanuts, gluten or soya affect a purchase.
Use the listing to make a shortlist, then read the current physical label before eating or serving the product.
These details concern the named products, not every mint chocolate made by each brand.
Marks & Spencer describes its Dark Chocolate with Mint as a 100 g bar with 85% minimum cocoa solids.
Waitrose & Partners describes Mint Thins as peppermint-flavoured dark chocolate with 55% minimum cocoa solids.
Tesco states that its Mint 47% Dark Chocolate is a 100 g bar with 47% minimum cocoa solids.
Lindt UK describes its 100 g Dark Mint Intense bar as dark chocolate with natural peppermint oil and 47% minimum cocoa solids.
Sainsbury's describes the 300 g box as individually wrapped peppermint fondants coated in dark chocolate.
These options include peppermint creams, a single dark mint bar and a six-box pack of wrapped mints. Check the quantity carefully if this is a small top-up.
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A 120 g pack of peppermint creams offers a smaller top-up format than the 200 g creams below. Check the current pack for egg and soya ingredients and a possible milk warning if these affect your choice.
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A single bar suits a top-up when you want mint chocolate rather than fondant creams. Lindt UK states 47% minimum cocoa solids and natural peppermint oil for this bar; its ingredients include milk fat and soya.
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These peppermint creams come in a 200 g pack, for a larger replenishment than the 120 g Buchanans pack. Check the current label for soya and possible milk and nut warnings if allergens matter.
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Six 300 g boxes of wrapped peppermint fondants are suited to keeping or serving more mints, not to buying one small top-up pack. Sainsbury's states 43% minimum cocoa solids for the chocolate in the 300 g product; check the current bundle labels for milk, soya and precautionary allergen statements.
Marks & Spencer states 85% minimum cocoa solids for its 100 g Collection Dark Chocolate with Mint bar. If that specific bar is your choice, check your local Foodhall's stock before making a dedicated trip.
No. Lindt UK lists milk fat in its Dark Mint Intense bar, and Sainsbury's lists milk butterfat in After Eight. Marks & Spencer describes its Collection dark mint bar as vegan but also says it is unsuitable for people with a milk allergy; check the current label for the exact product.
Sainsbury's describes Taste the Difference Free From Dark Chocolate Mints as milk and gluten free. Check the current physical pack for its ingredients and allergen statements before relying on that claim for a purchase.
Choose by how you intend to use the pack: a 100 g bar for breaking into squares, Waitrose Mint Thins for separate thin pieces, or wrapped After Eight fondants for serving after a meal. Check the pack quantity too, particularly when comparing a single bar with a box or multi-box bundle.
Yes. GOV.UK allergen guidance dated 17 July 2026 says retail and catering food businesses must provide allergen information for the food they supply; listed allergens include milk, cereals containing gluten, peanuts, tree nuts and soybeans. That requirement does not make a particular mint suitable for an allergy, so read the current product label.