French Onion Soup Grilled Cheese Sandwich

French Onion Soup Grilled Cheese Sandwich

French Onion Soup Grilled Cheese Sandwich

Sometimes, you just gotta take an inspiration from a sandwich and turn it into soup like this Cheeseburger Soup from two years ago.

And sometimes, it’s the other way around, you take an inspiration from a soup and then turn it into a sandwich.

This is a soup inspired sandwich.

Yesterday evening, Ykaie was very hungry after her two hour swimming class at the Manila Central University so we decided to buy something she could eat at the nearby McDonald’s.  We passed by some vegetables being sold on the street on the way and I told Ykaie I’d buy some white onions before going home. She asked me to buy lots of it because she wants it with her cornedbeef for lunch the next day.

That’s really nice, don’t you think? I have a child who isn’t afraid of onions! {and other vegetables, for that matter}

French Onion Soup Grilled Cheese Sandwich

I guess that’s what I get for being a mommy who eats everything and insists that my daughter try at least a bite of a food that is new to her.

French Onion Soup Grilled Cheese Sandwich

I got eight of these onions for ₱20. Not bad, considering that I did not need  to seek them out from the market. They just popped out in my line of vision.

Yes, I know they’re not the prettiest onions but they sure turned out really good. Even more than what I expected.

All you need is just heat, butter, oil, thyme, salt, pepper and a lot of PATIENCE….

Patience is for waiting while the onions get caramelized. You need it the most when you get the urge to turn up the heat. Don’t ever make the mistake of doing that because you’ll just end up burning up your onions and it’ll taste bitter not sweet and aromatic.

This recipe takes a few minutes to do and only has very few ingredients which I’m sure you already have in your kitchen.


French Onion Soup Grilled Cheese Sandwich

also inspired by Simply Scratch

  • Author: The Peach Kitchen


  • 2 medium yellow onions, peeled cut in half and sliced into 1/4-inch thick semi-circles
  • 2 tbsp salted butter,softened, plus more for buttering the bread
  • 1 tbsp olive oil
  • a dash of salt
  • 1/2 tsp dried thyme leaves
  • 1/2 teaspoon fresh cracked black pepper
  • pinch of granulated sugar
  • 3 tablespoons beef broth, beer, or white wine to deglaze the pan
  • 1/2 cup gruyere or mozzarella cheese or whatever cheese you like
  • 4 slices of crusty bread


  1. In a large skillet over medium heat, melt the butter and olive oil together.
  2. Add in the onions and stir so they are coated in all the fat. Cook undisturbed for 5 minutes.
  3. Stir and add in the salt, pepper, sugar and thyme.
  4. Stir, cover the pan with a lid and let cook. Stir occasionally until the onions are soft and a deep golden in color.
  5. Reduce the heat if you notice the onions are browning too soon. Reduce the heat if you notice the onions are browning too soon.
  6. Add in the beer and scrape any bits that accumulate on the bottom of the skillet and then remove them off of the heat.
  7. On a preheated griddle or large skillet; place a slice of buttered bread {butter-side down} and top it with a little shredded smoked Gruyere. Add half of the onion mixture and then more of the cheese. Top with a second slice of buttered bread {butter-side up}.
  8. Flip when the bottom is crispy and golden, repeat on second side.
  9. Cut in half and serve.

Did you make this recipe?

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19 Responses

  1. This looks so yummy! I love French onion soup, so I’ll try your grilled cheese version of it 😉 Imma let the family try it too. I’m sure they’ll love this!

  2. I LOVE caramelised onions and anything that includes them! I saw these on FB and they looked so good! What a great idea to make the soup into a sandwich.


  3. Great combination of caramelized onion and cheese.
    Awesome picture as well Peachy.
    Hope you are having a great week my dear 🙂

  4. The restaurant that we like here has a delicious onion soup! Your sandwich looks delish!

  5. My husband loves sandwiches. this is really interesting. thanks for sharing…

  6. that looks like FUN and delicious! interesting ang pag gawa ha:D kaya lang wala talaga sa dugo ko ang pgluluto ahaha

  7. I love caramelized sweet onions, it’s great on burgers and i bet it is awesome as well with cheese.:)

  8. You’re really a genius when it comes to cooking. i hope one day you can teach me how to cook/prepare dishes like this.

  9. I tell you that your recipe is so goood! One of my favorite! Will cook this one of this days ty for sharing your delectable recipe:)

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Hi, Peachy here!

I'm a foodie mommy living in the Philippines. I'm a mom to two daughters named PURPLE SKYE and PERIWINKLE MOONE and wife to a loving husband I fondly call peanutbutter♥. I am a foodie by heart, a coffee lover and a froyo and yogurt junkie. Learn more →






my photos on delishbook