McDonald’s Big Rosti Price with Ingredients and Allergens
Price: £ 9.09
If you have been scrolling for news on the McDonald’s Big Rosti UK release, you are not alone. Potato and bacon are a classic British pairing, and the Big Rosti puts them together in a burger that is built to be hearty. It is a limited-time item, so many people want the facts before they head to the drive-thru.
This article covers what the Big Rosti is, what goes into it, how it is likely to taste, and what the official nutrition numbers say. It also covers allergen advice, pricing and availability, and whether it deserves a place on your order. The nutrition and ingredient details come from McDonald’s Menu UK official product information. Taste comments are clearly marked as opinion.
3349 kJ | 803 kcal
Nutritional Information of Big Rosti
| Nutritional Information | Per Portionper portion | %RI (Adult)% daily value for an adult |
|---|---|---|
| Energy (kJ)Energy inkJ | 3349 | 40% RI*40% daily value |
| Energy (kcal)Energy inkcal | 803 | 40% RI*40% daily value |
| fat (g)fat ingrams | 46 | 66% RI*66% daily value |
| of which saturated (g)of which saturated ingrams | 14 | 69% RI*69% daily value |
| carbohydrates (g)carbohydrates ingrams | 59 | 23% RI*23% daily value |
| of which sugar (g)of which sugar ingrams | 7.8 | 9% RI*9% daily value |
| fibre (g)fibre ingrams | 5.2 | |
| protein (g)protein ingrams | 37 | 73% RI*73% daily value |
| salt (g)salt ingrams | 3.2 | 53% RI* |
Ingredients in the Big Rosti
Big Rosti Ingredients and Taste
Official ingredients
According to McDonald’s UK, the Big Rosti contains:
- A 100% British and Irish beef patty
- A crispy potato rosti
- Streaky bacon
- Processed cheddar cheese slices
- Creamy baconnaise sauce
- Cheese sauce
- A toasted glazed bun
That is a lot of savoury ingredients in one bun, with beef, bacon and two types of cheese all appearing in the list.
What Is the McDonald’s Big Rosti?
The Big Rosti is a limited-time burger on the McDonald’s UK menu. Its signature feature is a crispy potato rosti, which sits alongside a beef patty, bacon, cheese and two sauces inside a toasted glazed bun, McDonald’s has not given an end date that we can confirm, so treat it as a short-run item that could leave the menu without much warning.
What it may taste like (our opinion)
The following is a subjective description, not official information. Based on the ingredients, expect a rich, salty and creamy burger. The rosti should add a crunchy, golden contrast to the soft bun and juicy patty, a bit like a hash brown in a burger but with more bite. Bacon and cheddar usually bring smokiness and sharpness, while the baconnaise and cheese sauce add a smooth, indulgent finish.
If you enjoy a full-on, cheesy and bacon-heavy burger, the flavours sound like a good match. If you prefer lighter, fresher options, this may feel quite heavy. Your own experience may differ depending on the restaurant and how freshly it is prepared.
Allergens and Allergy Advice
If you or someone you are ordering for has a food allergy or intolerance, please read this section carefully.
McDonald’s states that its food is prepared in kitchens where allergens are handled and shared equipment is used. Because of this, it cannot guarantee that any item is completely allergen-free, even if you ask for ingredients to be removed.
Big Rosti Availability
The Big Rosti is listed as a limited-time item. We do not have a confirmed end date, and not every restaurant will necessarily stock it at all times. If you want to try it, it is sensible not to wait too long. Checking the app before you travel can save you a wasted trip.
Is the Big Rosti Worth Trying?
That depends on what you are after.
It may suit you if:
- You love bacon, cheese and potato together
- You want a filling burger with plenty of protein
- You enjoy trying limited-edition menu items
You might skip it if:
- You are watching your saturated fat or salt intake
- You prefer lighter meals
- You have allergies and want certainty about cross-contact
At 803 kcal, it is best treated as a main treat rather than an everyday lunch. If you want to balance things out, you could skip the fries or choose water instead of a sugary drink. As a general rule, a standalone burger leaves you more room in your day than a full meal with all the extras.
Overall, the Big Rosti looks like a bold, comforting choice for fans of rich flavours, and the limited run adds a sense of occasion. Just be aware of its nutritional weight.