Caramelized sweet onions and melted Gruyère cheese all between thick sliced crusty bread makes the perfect French Onion Grilled Cheese.
Grilled cheese is America’s favorite sandwich, but taking it to the next level is a meal solution that everyone will love. Grilled cheeses are always popular on Domestic Superhero; Caprese Grilled Cheese, Spinach Pesto Grilled Cheese, and BBQ Chicken & Pineapple Grilled Cheese are just a few of the popular recipes I’ve shared. However, this French Onion Grilled Cheese is going to blow your mind! It’s ooey-gooey, and majorly delicious!
Today I’m sharing a locally inspired French Onion Grilled Cheese. Why is it locally inspired? Because I am from Georgia, and I am featuring Georgia’s delicious Vidalia onions! They are the perfect onion for French onion soup, grilled cheese, or anything! It’s EASY to make this French Onion Grilled Cheese!
How to make French Onion Grilled Cheese:
**scroll down for full ingredient list and printable directions**
- Get all of the ingredients together: Vidalia onions, gruyere cheese, thick sliced Bread, butter, salt, and pepper.
- Now you have two options: Make the onions in the air fryer or the skillet. To make the caramelized onions in the air fryer, click here and follow these steps! Otherwise, continue below:
- Heat a heavy bottom skillet over medium low heat and add the butter to the skillet. While it’s melting, slice the onions thinly.
- Add the onions to the skillet once the butter is melted, and then sauté them for a few minutes.
- Turn the heat to low/medium and let the onions sit.
- You are going to caramelize the onions and this takes some time…about 20-25 minutes. Let the onions sit in the skillet and stir them every 5-6 minutes. Once the onions are browned and soft they are good to go!
- Next add the cooked onions to the grated cheese.
- I like mixing the cheese and onions before adding to the bread because it ensures equal distribution of the cheese and onions for every bite!
- Next, take the softened butter and slather onto one side of each slice of bread (this will be the side you cook the sandwich on). Then, add the onion mixture on the side of the bread that does not have the butter, and add another slice to the top, butter facing out.
- Wipe out the skillet you cooked the onions in, then heat over low/medium heat. Place the grilled cheese into the skillet, butter facing down. Cook 3-4 minutes or until browned on that side, then carefully flip over. Cook 2-3 minutes on the other side and remove from the pan. Cook the second French onion grilled cheese.
- EAT while HOT!
Tips for making the perfect grilled cheese:
- Keep the skillet over a medium/low heat. It is very easy to burn the bread while cooking a grilled cheese, so avoid this by cooking over medium/low heat. This ensures the cheese melts while not cooking the bread too quickly.
- Use enough cheese! Grilled cheese is meant to be packed with cheese…don’t skimp!
- Eat right after it’s cooked! No one likes soggy or cold hardened grilled cheese! Eat it freshly cooked for the most outstanding taste!
- Caprese Grilled Cheese
- Spinach Pesto Grilled Cheese
- BBQ Chicken & Pineapple Grilled Cheese
- California Grilled Cheese (Turkey, Avocado, Tomato)
- Apple Grilled Cheese
- Broccoli Cheddar Grilled Cheese
- Turkey Cranberry Grilled Cheese (Thanksgiving Leftover Sandwiches)
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Caramelized sweet onions and melted Gruyère cheese all between thick sliced crusty bread makes the perfect French Onion Grilled Cheese.
- 4 TBS butter room temperature
- 2 medium Vidalia onions peeled, halved and thinly sliced
- 3 ounces gruyere cheese grated
- pinch salt
- pinch black pepper
- 4 slices thick sliced bread
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Heat a heavy bottom skillet over medium low heat, and add 2 TBS butter to the skillet.
-
Add the onions to the skillet once the butter is melted, and then saute them for a few minutes
-
Turn the heat to low/medium and let the onions sit. Let the onions sit in the skillet and stir them every 5-6 minutes. Once the onions are browned remove from heat (about 20-25 minutes).
-
Add the cooked onions to the grated cheese, mix.
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Taking the remaining softened butter, slather onto one side of each slice of bread (this will be the side you cook the sandwich on). Add the onion mixture on the side of the bread that does not have the butter, and add another slice to the top, butter facing out.
-
Wipe out the skillet you cooked the onions in, then heat over low/medium heat. Place the grilled cheese into the skillet, butter facing down. Cook 3-4 minutes or until browned on that side, then carefully flip over. Cook 2-3 minutes on the other side and remove from the pan.
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Repeat for second sandwich. Cook and remove from skillet. Cut in half and enjoy immediately.
Published in 2020. Updated April 2023.
Andrew says
This looks amazing, and perfect with the chillier weather. Definitely going to try it this week.
Lily says
I loved this recipe so cheesey and delicious. This made for the easiest lunch, turning French onion soup into a sandwich was a genius idea!
Toni Dash says
This is really good! It quickly became a favorite at my house!
Jen says
I think I've just found my lunch! Wow!! I love a good thick bread for grilled cheese and this looks like perfection.
Beth says
This sounds so delicious and yummy! I'm definitely going to try this! Can't wait!
Sandi says
This was a huge hit with my teens. Talk about taking grilled cheese to the next level!
Toni Dash says
This is really amazing!! Such a delicious meal my whole family enjoys!
Toni Dash says
This is such a perfect grilled cheese! So hard to resist!
Matt Taylor says
I love grilled cheese sandwiches, even better with onions!! So yummy. 🙂
Lisalia says
French Onion?? Yes please. That flavor combo makes EVERYTHING taste better!
Cathy says
I've been craving French Onion flavors lately... this is exactly what I need!
Sandra | A Dash of Sanity says
My kids really enjoyed this!! They are requesting me to make it again!
April says
I could eat one of these every day. Loooove caramelized onions.
Julia says
Y'all, this grilled cheese is on another level!!! The onions make all the difference. So SO good!!
Jessica says
Boy do I need to thank you! I made this for my husband and he will not stop talking about it! Thank you!
Alicia says
I love French onion soup so when I saw the sandwich I knew I had to make it! It was a labor of love caramelizing the onions, but it was so worth it! I immediately wanted to make another sandwich to indulge myself, but I was so full after the first one that I decided to wait until the next day to make a second one. These are absolutely delicious!