Miller & Carter Onion Loaf

What is a Miller & Carter onion loaf?

A small loaf-shaped block of onion in batter, deep fried until crisp, served on the side of every Miller & Carter steak with the lettuce wedge and a balsamic-glazed tomato.

Miller & Carter lists it among the parts of its steak plate: "Our steaks are served with parsley butter or our signature butter, balsamic-glazed tomato, onion loaf, your choice of steak sauce, lettuce wedge dressing and side." The menu gives it no description of its own.

It also comes with the kids' 30 day aged rump steak 4.5oz on the Young Guest menu, which is "served with onion loaf and tomato". See every cut on the Miller & Carter steak menu.

How much is the onion loaf at Miller & Carter?

£4.75 as an extra side, at every Miller & Carter. It is one of the "any 3 for £12" sides, and it is free with every steak.

Most Miller & Carter dishes cost a little more or less depending on the restaurant's price band. The onion loaf is one of the few lines that is the same in all five bands, from Scunthorpe (Band 1) to Manchester (Band 5), in our scan of 132 restaurants on 15 Oct 2026. It is also a paid side on the gluten-free, fixed-price lunch, mid-week and celebration menus.

All six are among the eight any-3-for-£12 sides. More on the Miller & Carter menu.

How many calories are in a Miller & Carter onion loaf?

466 kcal per portion, with 26.1g of fat and 51.3g of carbohydrate. Miller & Carter's figures put the portion at about 300g.

The portion weight is our arithmetic from Miller & Carter's own numbers: 1,946.4 kJ per portion at 645.6 kJ per 100g is about 301g. An older menu page that Miller & Carter still hosts (Fleet) shows the onion loaf at 514 kcal; today's figure is 466. On a steak plate the onion loaf has more calories than any other included part, more than the seasoned fries (445 kcal) and close to the fillet 8oz itself (483 kcal). Every dish is on Miller & Carter calories.

Is the Miller & Carter onion loaf vegan and gluten-free?

Yes, it is marked both (VE) and (GF), and Miller & Carter's menu data declares none of the 14 major allergens for it.

It appears on the Coeliac UK accredited Miller & Carter gluten-free menu, where dishes contain no more than 20 parts per million of gluten. VE means made with vegan ingredients; the brand adds that preparation and cooking could affect this. Miller & Carter's printed menus also say food is prepared in areas where cross contamination may occur, so tell the team about any allergy. Every dish's allergens are on the Miller & Carter allergen menu.

Is there an official Miller & Carter onion loaf recipe?

No. Miller & Carter has not published it. The recipes online are copycats written by food bloggers, and the two at the top of Google UK on 17 Oct 2026 both use ingredients the restaurant version does not contain.

Miller & Carter's onion loaf is marked vegan and gluten-free with no allergens declared, so the restaurant's version contains no egg, no milk and no wheat flour. Flawless Food says as much: "this isn't Miller and Carter's recipe; they keep it secret!" Both bloggers say oven baking does not give the same crunch. We have not cooked either recipe; follow the links in the sources to try them.