French Onion Mac and Cheese

My husband is what I would like to call a “Mac ‘n Cheese purist.”

Some others might call him a kid…

He likes his macaroni and cheese plain. Sometimes he’ll crack some pepper on top and put some ketchup in there… (that’s actually pretty good too, when you’re in a pinch).

So the other day when I was creating this French Onion Mac and Cheese, he was “for sure not going to have any.”

French Onion Mac and Cheese

Fine by me! That just means more for yours truly. 🙂

Well, wouldn’t you know it… once the French Onion Mac and Cheese was done, I served the kids regular mac (including him and his plain jane mac), I sat down with my creamy bowl of delicious flavors, he glanced down at his bowl of lifeless noodles, back to my appetizing bowl, and quickly asked for some French Onion topping.

Mmm. hmmm.

French Onion Mac and Cheese

The french onion soup that I always make is simple. Onions (duh), thyme, and beef broth. I took those same components and made a quick and delicious topping that bursts with flavor on top of a bed of mac and cheese.

French Onion Mac and Cheese

The creamy mac is loaded with sweet caramelized onions that are infused with beef broth and fresh thyme (dried thyme works just as good too). Top it all off with some swiss cheese and a little sprinkle of crushed croutons. The croutons give it a delicious crunch to add some texture to this tasty dish.

French Onion Mac and Cheese

Satisfy your grown up taste buds with this quick and easy French Onion Mac and Cheese.

Oh, and just so you know – my husband LOVED it. 😉

Make sure you don’t miss a thing! Follow I Wash You Dry here:

A close up of a bowl of French Onion Mach and Cheese topped with meet and white shredded cheese
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French Onion Mac and Cheese

I took those same components of French Onion Soup and made a quick and delicious topping that bursts with flavor on top of a bed of mac and cheese.
Prep Time5 mins
Total Time5 mins
Course: Dinner
Cuisine: American
Servings: 4
Calories: 81 kcal
Author: Shawn


  • Macaroni and Cheese , prepared according to box directions
  • 1 tsp olive oil
  • 1 onion, or two small ones, halved and sliced to make thin strips
  • salt
  • 1 tsp thyme, or dried
  • 1 tbsp beef broth
  • 1/2 cup Swiss cheese, shredded
  • 1/4 cup croutons


  • While the macaroni and cheese is boiling, heat the olive oil in a large skillet over medium high heat.
  • Add the onion and salt and stir occasionally till the onions start to turn brown and caramelize.
  • Add the beef broth and thyme, and cook until the broth is absorbed. Top your bowl of prepared mac and cheese with some of the onion mixture, sprinkle with a little swiss cheese and crushed croutons.
  • Enjoy!


Calories: 81kcal | Carbohydrates: 5g | Protein: 4g | Fat: 5g | Saturated Fat: 3g | Cholesterol: 12mg | Sodium: 54mg | Potassium: 51mg | Fiber: 1g | Sugar: 1g | Vitamin A: 136IU | Vitamin C: 3mg | Calcium: 113mg | Iron: 1mg
Keywords: French onion, Macaroni and cheese, swiss cheese
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About the author

Shawn is the Owner and Creator of I Wash You Dry. She loves to create and share simple, family-friendly recipes. Mom to 5 adorable children and dwells in the desert of Southern Utah.

Shawn Syphus smiling

Shawn Syphus

Hi, I’m Shawn and I’m a busy mom of five; pretending to live on a budget. I love to cook, and explore new recipes, but they have to be quick and easy with as few dishes as possible.

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