French Onion Mac & Cheese

Umm, so if you’re watching your weight, you may want to click back to the last page you viewed right about now…. I tend to cook healthy dishes most of the time, but decided to go all in on this one and it was so worth it! I was in the mood for some comfort food this week, and my cute little French Onion Soup bowls were begging to be used again, so I dreamed up this French Onion Mac & Cheese!

Uh huh, cavatappi pasta mixed with a creamy fontina, asiago, and mascarpone cheese sauce and a healthy dose of caramelized onions (which just make everything better!). I didn’t stop there though. In order to mimic the soup, I filled up the bowls with my mac & cheese and topped them with some croutons and grated gruyere cheese. So rich and indulgent and definitely my favorite mac & cheese recipe so far. My mouth is watering just thinking about it!

French Onion Mac & Cheese
Printable Recipe

Ingredients:
6 tablespoons unsalted butter
2 tablespoons olive oil
3 large yellow onions, sliced (9 cups)
1 pound cavatappi pasta
1/4 cup all-purpose flour
2 1/2 cups milk (I used 2%)
2 cups shredded fontina cheese
2 cups shredded asiago cheese
8 ounces mascarpone cheese
1 teaspoon salt
2 cups croutons
3 cups shredded gruyere cheese

Directions:
Heat 2 tablespoons butter and olive oil over medium low heat in a large nonstick skillet. Add onions, cover, and cook 30 minutes, stirring every 10 minutes. Remove lid and cook an additional 10 minutes, or until caramelized.

Meanwhile, prepare pasta according to package directions. Drain and place back in a large pot with the caramelized onions.

Melt remaining 4 tablespoons butter in a large saucepan over medium heat. Whisk in flour until smooth and cook one more minute or until mixture starts to brown. Whisk in milk and bring to a boil. Reduce heat to low and mix in fontina, asiago, and mascarpone cheeses, and salt. Heat 5 minutes or until cheese is melted and mixture is smooth, whisking occasionally. Mix cheese sauce with cooked pasta and caramelized onions in the large pot. Pour pasta into 8 oven-safe dishes, preferably French Onion soup bowls! Place dishes on a large cookie sheet.

Heat oven broiler. Top bowls filled with mac & cheese evenly with croutons and shredded gruyere cheese. Broil for 2 to 3 minutes or until cheese is melted. Makes 8 servings.

Nutrition: 993 calories, 60.2g fat, 5.8g fiber, 42.2g protein per serving
Cost: $2.50 per serving

30 Responses to French Onion Mac & Cheese

  1. Oh man…why did I have to read this on a day that I managed to stick to 1200 calories? This sounds absolutely amazing. I just sent it to my co-blogger who loves both french onion soup and mac & cheese even more than I do…one of us will definitely be making this in the near future!

  2. I like something a bit more indulgent every once and awhile (heck, who am I kidding, most of the time) and this sounds lovely. I’m a huge fan of mascarpone in mac and cheese. It makes the texture so silky and creamy.

  3. I am very happy to read your recipes. It’s very useful for me, and I am completely satisfied with your website. All recipes and food information are very useful and very good. Your website is very attention-grabbing. I love all of the in turn you are sharing with each one!

  4. Hey Kerstin, it was great to meet you last night. This recipe looks so good! I love the idea of combining mac & cheese with French onion soup. Looking forward to browsing your site more

  5. Thanks everyone!! And thanks to whoever stumbled this recipe, it’s now definitely the most popular recipe on my blog!

    Lauren – Thanks, that means a lot coming from you :)

    Shannon – That was the plan, but I didn’t quite get to it. I made it the day after :)

    Nicole – I winced doing it… :)

    Ranjani – You too! I’m looking forward to checking out your blog more as well!

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