The perfect crispy melty brie grilled cheese sandwich with melty crispy bacon and sweet caramelised onions. This is fall comfort food at its best.
Halllooooo melty brie grilled cheese goodness! A while ago while watching Saturday morning cartoons with my kids, I saw an Elmer Fudd ‘music video’ where he serenades a grilled cheese. At first I thought this was too weird to be on kids TV as he was really seducing that grilled cheese but I also kinda knew what he was singing about. Is there anything as delicious as a really, REALLY good grilled cheese? I get you Elmer, I get you.
There’s something about melted cheese in general that just draws people in like a moth to a flame. A brie grilled cheese? Now you’re talking. Add crispy bacon and sweet, caramelized onions and you have perfection on bread. This is what I promise with this sandwich. Nothing fancy. Nothing ground breaking. Just a damn good grilled cheese sandwich.
How to make a Brie grilled cheese
I think Brie is the perfect grilled cheese, cheese. It has that perfect melty, oozy quality and the flavor is just perfect paired with with the smoky salty bacon and the sweet, caramelized onions. The onions are super easy to make and really just requires time for the onions to break down and to get all sweet and sticky with the sugar and the vinegar. It’s the kind of thing I make in bulk and use in everything from sandwiches to pasta bakes. To make the grilled cheese, good bread goes a long way and I always like to use sourdough or a good country loaf whenever I can.
To make the brie grilled cheese sandwich, fry streaky bacon until crispy. Layer crispy bacon, slices of brie cheese (you can add a bit of mozzarella too) and caramelized onions onto one slice of bread. Sandwich with another piece of bread and butter generously. Cook the sandwich, butter side down, in a skillet or pan set over medium heat. Allow to cook until the bread is golden brown and toasted and the cheese is starting to melt. Butter the top slice of bread and carefully flip over. Cook until the cheese has melted then remove from the pan. Allow to rest for a minute before slicing and serving.
Grilled cheese recipes

Crispy bacon & brie grilled cheese sandwich with caramelised onions
Ingredients
for the caramelised onions
- 2 large onions sliced
- 1 tablespoons olive oil
- 1/2 teaspoon salt
- 2 tablespoons brown sugar
- 2 tablespoons red wine vinegar
for the sandwich
- 250 g bacon cooked until crisp
- 120 g brie cheese sliced
- 8 slices bread of your choice
Instructions
- To make the caramelised onions, heat a large frying pan over medium heat then sauté the onions in the olive oil with the salt until soft and golden. Add the sugar and vinegar and allow to caramelise. Set aside.
- To make the sandwich, butter the bread on both sides then top with the onions, brie cheese and bacon.
- Grill in a hot pan/sandwich press until golden brown and heated through.
- Serve immediately.
Nutrition
I think these would be amazing with a bit of lingonberry jam and arugula
This made my two boys happy. My 13-year-old says that I should enter a cooking contest with this sandwich. Thank you for the recipe. It made me delighted to feed them something so delicious!
Hahaha that’s awesome. Thanks Beth!
I now use mayonnaise instead of butter for grilled cheese. Easier and taste better
This was amazing! I had to make it with gluten free bread but it still tasted great. I’m making this again for lunch tomorrow. Thanks!
Yay! So glad you liked it. 🙂
Bacon and melting cheese oh my! This is heaven. I want one!
That cheese gets me every time. 🙂
I agree. The onions give it the sweetness it needs. I love this recipe.
Oh my Alida! This is my kind of sandwich! And Tom’s too! Such a great combo of ingredients!
Thanks Mary Ann!
can I use apple cider vinegar instead of red wine/is there another substitute, or can I omit it?
You could omit it or use really any vinegar you like. I just like the acidity it adds.
Best grilled cheese I’ve ever had.
That’s awesome to hear! 🙂
We had these sandwiches for lunch and they were so great. Super cheesy and bacon was awesome.
Yay. 🙂 Bacon makes everything better.
I was thinking of adding jalapeños relish and bacon to it.
That would be delicious!
This is a delicious sandwich! Made it exactly as recipe states yet added a little more brown sugar cause I wanted the onions really sweet. Dont be shy to load up the sandwich with the onions. I made the bacon and cut them up in pieces because the first time I made this, I left the bacon strips whole and when I bit into the sandwich the entire bacon strip slid right out. Also I cut the paper stuff off the brie and placed what you would call slices on the sandwich..it melted really well. Lastly, I used an Italian Tuscan hearty bread..Sooo good!
So glad you liked it.
Love this sandwich so much! It looks delicious!!
Thanks Megan!
Hello this is a thing pertinent to my interests and I would like to eat it.
Oh wow Alida! This looks beyond fantastic- can’t wait to try it.
Thanks Colleen! Please let me know what you think once you’ve tried it!
Yummy goodness….
OMG! I died just looking at this! And bacon too?!? WOW!
Bacon makes everything better… 😉
It does! Have you tried a maple bacon donut or waffle before? They also really good!
No but I’ve done pancakes (obviously). Am DYING to do a maple-bacon donut!
You have too! They’re incredible! 🙂
Well, you’ve just convinced me. 😉
That is one incredible sandwich!! These melty cheese looks perfect. Well done!
Thanks! I’m starting to think that melty cheese and I are soulmates.
This may be the most epic grilled cheese ever. It looks amazing!