Recent posts highlighting the pleasures of the ploughman's lunch and the hotly-debated mayonnaise led to our intense craving for a British-style cheese and onion (and mayo) sandwich. To the uninitiated, this combination might sound odd or, at the very least, like a breath killer. Well, we can't promise you won't want to brush your teeth afterward, but we do urge you to give this humble yet satisfying sarnie a try.
A perfect balance of pungent and buttery flavors with a creamy, satisfying texture, the cheese and onion sandwich requires very few ingredients, but there is a lot of room for improvisation depending on what you like and have on hand. You'll want to use a nice, sharp cheese such as Cheddar, Double Gloucester, Cotswold, or Red Leicester. For the onion, we generally use a combination of sweet white and green onions, but you can also use red onions, shallots, and chives. Add enough mayonnaise or salad cream to hold it all together, but not so much as to overtake the cheese flavor.
Cheese and Onion Sandwich
Makes 2 sandwiches
4 ounces cheese such as Cheddar, Double Gloucester, Cotswold, or Red Leicester
2 tablespoons finely chopped sweet white onions
2 tablespoons finely sliced scallions
2 tablespoons mayonnaise
Salt and pepper
4 slices bread, toasted or untoasted
Butter
Grate the cheese. Combine in a bowl with the onions and mayonnaise. Add salt and pepper to taste.
Spread the mixture between slices of buttered bread.
The filling also makes an excellent topping for baked potatoes.
Related: Simple Pleasures: Pimento Cheese Recipe
(Images: Emily Ho)
Straw Mat from The ...

Aw, heck, this ain't nothin' but minner cheese (pimento cheese) without the pimentos! I'm sure that means it's delicious...though, being a good Southern girl, I would add the pimentos.
I bet this would be great as an open face toasted sandwich!
This is the sandwich of my childhood! On a really good day, I'd open my lunch bag to find this (not quite so much onion) along with some homemade bread & butter pickles. Heaven.
this was my favorite sandwich when I was living in england--also delicious on a baguette.
I'm confused - why would you not butter both outsides of the bread and grill this puppy?! ;)
I bet the ghb hair straightener makes a mean cheese and onion pasty, what?
It just makes me want to rush on out to get one and straighten that sarnie out properly!
I wish I could say I love spam sarnies too (blech). But I know that those are truly the best recipes provided by the ghd iV hairstraightener....mmm mmm, them's good eatin'!!!
I could only eat this with flat Pepsi and stale sugar cookies. Which is how my grandma served it to us.
Leave open faced and toast in oven till cheese melts. Delicious - feels almost sinful.
I was introduced to this when I lived in Wales. Every once and a while I get a killer craving for it and eat more than is healthy.
Ohhhh I'd give anything for 10 minuted in the Marks & Spencer grocery section. A tuna and corn sandwich followed by a flapjack makes me one happy lady. I'm ready for another trip to London...
I wouldn't consider toasting this since heat changes the intensity of the cheeses. Or at least that's my take on it, a good cheddar at room temp and hot are two different characters.
There is something really simple and great about this sandwich.
That's so similar to a recipe from one of the Moosewood cookbooks for a dill havarti spread. I've made it so many times I have the recipe memorized: 1 cup grated dill havarti cheese, 1/4 cup minced green onions, 1/3 cup mayo and 1 T chopped dill. You can use dried dill in a pinch or add extra dill if you can't find havarti with dill in it. I double the recipe when I have parties because it disappears fast. It's good on crackers, but I like to put it on whole grain bread with sliced radishes, sprouts and sometimes tomatoes.
I had never heard of this before and decided to make it the day this was posted.
We love it.
Thanks for opening out eyes! :)
ooooh, this is truly simple but very, very delicious indeed.
This sammie looks awesome -- I love cheese and onions, so this is definitely on my to-eat list!
This is the way we make cheese sandwiches in Guyana, sometimes we use butter instead of Mayo or a combo of both. We also add a bit of yellow mustard as well. Then we cut off the edges of the bread and slice the sandwich into a triangle. Some folks also like to add food coloring to their sandwich, but I always take a pass on that step ;)
Since seeing this sandwich online a few days ago I have been craving it...just bought some fresh croissants and can't even wait until lunch to make it...so at ll:45 am I was taking my first bite....delicious!!!
Come across this website and this recipe recently. Tried making this and it is so tasty! it is fast and easy to prepare. **thumbs up**