Stop adding mayo to tuna sandwiches - 1 ingredient is richer and creamier

Soup, salads and wraps have become a popular lunch options over the years, but you can't beat a good old fashioned sandwich for a satisfying snack.

There's an overwhelming array of tempting options you can wedge between two slices of bread, but few can top the all-time classic of tuna mayonnaise. It also works well as a tasty jacket potato topping, but if you don't have time to make a hot meal, the delicious duo do make a winning sandwich filling that will more than satisfy a hungry stomach. You can liven up the snack up by by adding a wedge of cucumber or a garnish of lettuce and tomato for a refreshing crunch, but if you really want to elevate the flavour of the dish, food experts recommend ditching mayonnaise for sour cream instead.

Sour cream is an ideal substitute for mayonnaise because it has a similar creamy and smooth texture, but it adds a deliciously sweet tang helps enhance the flavour of the tuna without being too overpowering - and it's healthier than mayo too.

Food experts at Tasting Table explain: "While the mayo's custardy, egg tones are typically expected, you'll find sour cream's sweet, creamy medley to be just as (if not more) satisfying.

"Both mayonnaise and sour cream have a tangy flavour base, but sour cream has a milky richness that brings a refreshing element to tuna salad. The fish's usual salty, savoury taste is less dull and instead, perfectly balanced by an equal amount of deep and bright flavours.

"Even better, with sour cream's consistency, there's also a textural shift that makes for a much better eating experience. Everything comes together beautifully on the taste buds - the fish's tender yet chewy bites and the veggies' slight crunchiness, all coated in the sour cream's velvety thickness."

Sour cream also has the added benefit of generally being lower in fat compared to mayonnaise, so it's a slightly healthier option that still delivers a wonderfully rich and creamy taste.

To make your sandwich filling, Food.com recommends adding one tablespoon of sour cream (either regular or low-fat) to 5oz of tuna in a bowl and mashing this together.

For an extra burst of flavour, you can add in a pinch of salt and black pepper and one teaspoon of mustard, although the latter is entirely optional.

Once the ingredients are all combined you can add more sour cream (and mustard) depending on your preference. Then simply serve your tuna salad in a sandwich and garnish with some slices of cucumber, tomato and lettuce for a burst of freshness.