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Home » lunch » Caramelized Onion and Apple Grilled Cheese

Caramelized Onion and Apple Grilled Cheese

Published: Apr 26, 2017 · Modified: Mar 25, 2020 by Louisa Clements · This post may contain affiliate links

This post may contain affiliate links

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45 minutes 10 Comments

A gooey grilled cheese sandwich made with caramelized onions, green apple and horseradish.

A gooey grilled cheese sandwich made with caramelized onions, green apple and horseradish. | livinglou.com

Grilled cheese is one of those inherently Canadian dishes; bread with melted, gooey cheese and butter. Basically, three of the best ingredients in the world, no? Here’s the thing, my mother didn’t grow up in Canada—she grew up in London and Athens. These two cities couldn’t be more different, but they also couldn’t be more different from Toronto, which is the city where I was born and raised and where grilled cheese was a common after school snack—for everyone except myself and my sister. So, where did I receive my ‘grilled cheese education’?

It starts off with my Toronto high school, where the grilled cheese fundraisers were something of legend. A few times a year, you would smell cheese and butter wafting down the hallways before lunch or after school to raise money for a variety of charities. These fundraisers were a big deal back then, students would line-up down the hallways or outside the front of the school for a sandwich.

A gooey grilled cheese sandwich made with caramelized onions, green apple and horseradish. | livinglou.com

While I loved those simple sandwiches (they were just butter, cheese and bread), I knew that there was more to grilled cheese, so I started experimenting and getting creative. The next stop in my education was from a Martha Stewart recipe where I learned that adding slices of apple to a sandwich was a game changer. The crunch and sour notes from a Granny Smith apple were now required in a Living Lou grilled cheese.

Back when I worked in the test kitchen of a magazine, we spent many days tasting and eating grilled cheese recipes for a holiday feature. This was a lesson in balancing flavours and taught me that the kind of cheese used makes a huge difference. I’ve used Brie, Gruyere, Havarti, Cheddar and even blue cheese in my grilled cheese sandwiches, and for this recipe I’m highlighting the Canadian cheese, Heidi.

Heidi is a firm cheese with deep and rich flavours, when I first tasted it I found that it had subtle earthy and grassy notes. You can think of Heidi as a cheese similar to Gruyere (basically, an incredible melting cheese).

A gooey grilled cheese sandwich made with caramelized onions, green apple and horseradish. | livinglou.com

I’m thrilled to be partnering with Dairy Farmers of Canada this year to highlight the incredible local and award-winning cheeses we have right at our fingertips here in Canada. You know that I love all things local, and this month’s featured ‘Cheese of the Month’ is Heidi from the Fraser Valley of British Columbia. If there’s one thing you should add to your list this year, it’s to join me in learning and tasting all kinds of Canadian cheeses.

For this grilled cheese, I took a few of my favourite grilled cheese ‘accoutrements’–caramelized onions (made with a splash of red wine which pairs beautifully with Heidi), Granny Smith apple and horseradish for a little kick and tartness to balance out the richness of melted, gooey cheese.

A gooey grilled cheese sandwich made with caramelized onions, green apple and horseradish. | livinglou.com

Caramelized Onion and Apple Grilled Cheese

Author: Louisa Clements
4 from 12 votes
A gooey grilled cheese sandwich made with caramelized onions, green apple and horseradish.
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Prep: 5 minutes
Cook: 40 minutes
Total: 45 minutes
servings icon
Servings: 2

Ingredients

For caramelized onions:

  • 2 tsp olive oil
  • 1 tbsp butter
  • 2 yellow onions, thinly sliced (⅛” slices)
  • ½ tsp salt
  • ¼ cup light red wine

For sandwich:

  • 4 ½ ” thick slices of egg bread
  • 2 tbsp softened butter, divided
  • 2 tsp prepared horseradish, divided
  • 140 g/6 oz grated or thinly sliced Heidi cheese, divided
  • 2 rounded tbsp of caramelized onions, divided
  • ½ Granny smith apple, thinly sliced, divided

Instructions

For caramelized onions:

  • Heat oil and butter over medium heat in a large pan. Add onions and salt, cook, stirring occasionally for 20-25 minutes or until onions are a deep brown. Add red wine, in splashes (about 3 additions), to onions. Stirring and allowing all liquid to absorb before adding more. Remove from heat and set aside.

To assemble one sandwich:

  • Heat a grill pan or regular pan over medium heat. Butter both pieces and sides of bread. Spread one slice with horseradish. Top a quarter of the cheese, top with one rounded tbsp of caramelized onions. Add half the apple slices, top with more cheese and slice of bread.
  • Cook on stovetop for about 5 minutes, turning the heat down to avoid burning. Flip and cook until golden brown on the other side another 3-5 minutes.
  • Repeat with remaining ingredients for second sandwich.
Did you try this recipe?Leave a comment + rating and let me know what you think!
Filed Under: cheese, Dinner Recipes, easy, lunch, vegetarian
Nutrition Facts
Caramelized Onion and Apple Grilled Cheese
Amount Per Serving
Calories 570 Calories from Fat 405
% Daily Value*
Fat 45g69%
Saturated Fat 26g163%
Trans Fat 1g
Cholesterol 120mg40%
Sodium 1202mg52%
Potassium 336mg10%
Carbohydrates 20g7%
Fiber 3g13%
Sugar 10g11%
Protein 19g38%
Vitamin A 1258IU25%
Vitamin C 11mg13%
Calcium 545mg55%
Iron 1mg6%
* Percent Daily Values are based on a 2000 calorie diet. Nutrition information is an estimate and is provided for informational purposes only. If you have any specific dietary concerns, please consult with your healthcare practitioner.

Disclosure: This post was sponsored by Dairy Farmers of Canada – as always, all opinions are my own. Thank you for supporting my sponsors and allowing me to continue creating recipes like this caramelized onion and apple grilled cheese! 

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Comments

  1. Shirley

    August 28, 2017 at 4:58 pm

    Just received your Twitter about your absolutely sinfully delicious grilled cheese sandwich which has reminded to make this awesome sandwich again!
    ★★★★★

    5 stars

    Reply
  2. Marsha

    July 31, 2017 at 11:01 am

    Great recipe!!! I would definitely try your recipe. Thank you.
    ★★★★★

    5 stars

    Reply
    • Lou

      August 17, 2017 at 10:32 pm

      Thank you Marsha!
      Reply
  3. zied

    July 03, 2017 at 3:03 pm

    Great idea i'm gonna try thank you Lou
    ★★★★★

    5 stars

    Reply
    • Lou

      July 24, 2017 at 10:45 pm

      Thanks Zied, let me know how it goes!
      Reply
  4. Bridget

    April 26, 2017 at 11:00 am

    This looks so delicious!. Such a great idea to up my grilled cheese game. Thanks.
    Reply
    • Lou

      April 26, 2017 at 12:46 pm

      Thank you Bridget!
      Reply
  5. Shirley

    April 26, 2017 at 9:09 am

    Ooooops - I must also pick up the apples to make this delicious sandwich! I love apples in all recipes!
    Reply
  6. Shirley

    April 26, 2017 at 9:06 am

    Oh my goodness! This sandwich looks soooo delicious! I love grilled cheese sandwiches & I love carmalized onions & I love egg bread! Soooo, I will be making this sandwich as soon as I pick up the egg bread! Can't wait to taste it!
    Reply
    • Lou

      April 26, 2017 at 12:46 pm

      Thank you! It's SO good. :)
      Reply

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Hi, I'm Louisa Clements & welcome to Living Lou. I've been creating simple, fresh & flavorful recipes for the modern kitchen for 12 years.
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