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Caramelized Onion Grilled Cheese

Caramelized Onion Grilled Cheese it the perfect comfort food for dreary days! Buttery toasted bread piled high with shredded sharp cheddar and sweet caramelized onions; it will be your new fave!

Caramelized Onion Grilled Cheese

Today was a grilled cheese kinda day.

I saw the weather maps this morning. You guys know what I’m talkin’ about.

This day was polka dot galoshes (whyyyy is that word so fun?) and a heavy pink hooded coat. It was a flooded front yard and muddy back steps. Today meant convincing Lucy that yes, it is wet and cold, and yes, we do still have to go out here, only to have her hustle back inside and try to sad-puppy-eye me into wet doggie sofa snuggles.

Sorry, sweet girl. There’s not enough Febreze in the world for that.

This extra rainy dreary day was full of piping hot coffee, longing for the work to get done in time for me to couch surf with a book (not a chance), re-heated soup and a completely inconvenient interlude from my dryer that decided to quit.


In other words, this day was basically MADE for grilled cheese.

Caramelized Onion Grilled Cheese Recipe

And onions. Sweet sweet caramelly onions. There is no such thing as too many caramelized onions.

There IS such a thing as too many broken appliances, though. We are down a microwave, which is actually fine by me because we didn’t use ours much and it was like 174 in microwave years. That thing belonged to my sister and then my brother and then me and then my brother again, and then my sister again and then me. It might have visited my other sister in college. I can’t be sure. The point is, that microwave was tired and needed a permanent break.

The dryer, on the other hand, was supposed to last until we move out of this place. It’s quitting about 6 months too early. I think that’s a breach of contract or something.

Grilled Cheese with Caramelized Onions


Logistical question: What do you do with a washer full of sheets that need to be dried when your dryer is broken and it’s pouring rain?

Answer: You hang sheets from every available surface so it looks like one gigantic tent fort inside your house.

Also, you make more grilled cheese.

Caramelized Onion Grilled Cheese Sandwiches

Recommended to serve with Caramelized Onion Grilled Cheese

Roasted Tomato Basil Soup

Easy Minestrone Soup

Soup, of course! Roasted Tomato Basil Soup is my very favorite homemade tomato soup recipe. If you are partial to buying a LOT of summer tomatoes, you will definitely want to check out that recipe. 

Easy Minestrone Soup is made in the slow cooker! Super simple, loaded with veggies, and will arm you right up. 

Caramelized Onion Grilled Cheese Recipe
Yield: 4

Caramelized Onion Grilled Cheese

Prep Time: 5 minutes
Cook Time: 30 minutes
Total Time: 35 minutes

Caramelized Onion Grilled Cheese is loaded with sweet caramelized onions and sharp cheddar cheese. A great way to jazz up a grilled cheese sandwich.


  • 1 tablespoon olive oil
  • 1 1/2 tablespoons butter (plus more to grease the pan when grilling the bread)
  • 1 large onion, halved and thinly sliced
  • 1/4 teaspoon kosher salt
  • 8 slices thick whole wheat bread
  • 8 ounces shredded sharp white cheddar (I used Cabot!)


  1. Heat the olive oil and butter in a small skillet over medium heat. Add the onions and sprinkle them with the salt. Cook, stirring occasionally, until the onions are soft, translucent, and the color of caramel, about 20 minutes. remove the onions from the heat and set aside.
  2. Butter a large skillet or griddle. Lay 4 slices of bread down in the butter. Top each bread slice with a handful of cheese. Divide the onions evenly between the 4 sandwiches on the griddle.
  3. Cook over medium to medium high heat for a minute until the cheese starts to melt.
  4. Lay more cheese over the onions on each of the sandwiches. Top with another slice of bread.
  5. Carefully flip the sandwiches and cook on the second side until the cheese is melted and the bread is toasty and grilled.

Nutrition Information:



Serving Size:


Amount Per Serving: Calories: 472Total Fat: 29gSaturated Fat: 14gTrans Fat: 1gUnsaturated Fat: 12gCholesterol: 68mgSodium: 829mgCarbohydrates: 32gFiber: 4gSugar: 5gProtein: 21g

Simply Tia

Saturday 9th of March 2013

Total yumminess!

Allison@Main St. Cuisine

Friday 8th of March 2013

The broken dryer sounds awful! Coincidentally, I'm waiting on my new dishwasher to be delivered...what a pain! I'm loving your sandwich. I want to put that together on my panini press. Now, I want French onion soup too. Yummy!


Sunday 3rd of March 2013

I love how you roll with the punches...a broken dryer would just set me off! I can't function when things are not perfectly in order. Obviously I need to work on this. A lot.

Love caramelized onions....they are one of my favorite things. Looks delicious. I hope the weather has warmed up where you are!


Monday 4th of March 2013

Oh make no mistake, Ameena. The dryer totally set me off. It's like 1954 up in here. The blue jeans are SO STIFF. But I don't like making hasty purchases either so... there you have it.


Friday 1st of March 2013

Bread, cheese, caramelized onions.. 3 of my favorite ingredients..This is a must make real soon.. looks too good.. My dryer has bit the dust too and have been visiting the laundromat (that's an interesting place for Here's to us getting new dryers!!


Friday 1st of March 2013

Right? I've found that renting the appliances is actually cheaper than the laundromat, though I haven't had to go either route just yet (there is laundry errywhere). I bet the laundromat here would entertain me for weeks! Make these simple comforting sandwiches. And I hope you get a new dryer!!

Real Life Farm Wife

Wednesday 27th of February 2013

We had grilled cheese (using Swiss) today and roasted red pepper and tomato soup.

Though it was very good, now I wish I had read this first!


Friday 1st of March 2013

Thanks, Janet! I do love my caramelized onions. Mmmmmmm. Swiss & red pepper sounds pretty good though!

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