Go Back
French Onion Mac And Cheese Recipe

French Onion Mac And Cheese Recipe - Quick Delicious Meals

Imagine the comforting embrace of gooey cheese and hearty pasta, wrapped in the sweet aroma of caramelized onions. That's French Onion Mac and Cheese for you! It’s the kind of dish that brings people together, whether you're hosting a dinner party or crashing on the couch for a cozy night in. 
I found myself concocting this recipe after one too many disappointing mac-and-cheese experiences. You know the ones—overly cheesy or bland, leaving you longing for something that truly satisfies.
After intense testing and a little trial and error in the kitchen, I perfected a recipe that not only delivers on taste but also adds that unique French onion twist. It's creamy, rich, and oh-so-delicious. 
So, let’s get into what makes this dish so remarkable.
Prep Time 2 hours
Cook Time 30 minutes
Total Time 2 hours 30 minutes
Servings: 12
Course: Dinner
Cuisine: American
Calories: 259

Ingredients
  

  • 4 large sweet yellow onions, thinly sliced
  • 3 tablespoons extra virgin olive oil
  • kosher salt and freshly ground black pepper
  • 1 pound short-cut pasta, cooked al dente
  • 12 ounces aged Gruyère cheese, finely grated
  • 3 ounces Parmesan cheese, freshly grated
  • 3 tablespoons unsalted European-style butter
  • 1/4 cup plain all-purpose flour
  • 2 1/2 cups whole milk
  • 1/3 teaspoon freshly grated nutmeg
  • 1 teaspoon garlic powder
  • 1/3 cup herbed seasoned breadcrumbs
  • fresh thyme sprigs, for garnish

Method
 

Step 1: Caramelize the Onions
  1. Start by heating the olive oil in a large skillet over medium heat. Add the sliced onions and season with salt. It’s all about patience here. 
    Stir frequently for about 30 minutes, allowing them to caramelize slowly until they turn a rich, golden brown. The aroma will be mouthwatering.
Step 2: Prepare the Pasta
  1. While the onions are cooking, boil the pasta in salted water until al dente. Drain the pasta and set it aside. You want the right bite to complement the creamy sauce later.
Step 3: Create the Cheese Sauce
  1. In a separate pot, melt the butter over medium heat. Once melted, whisk in the flour to create a roux. Cook it for about two minutes, stirring continuously, until it turns a light golden color. Gradually add the whole milk, whisking constantly to promote a smooth texture.
Step 4: Add Seasoning and Cheese
  1. Once your sauce thickens, add the garlic powder, nutmeg, and a generous pinch of salt and pepper. Then, stir in the Gruyère cheese until it melts, followed by the Parmesan. It’s a cheesy extravaganza!
Step 5: Combine Everything
  1. In a large mixing bowl, combine the pasta, caramelized onions, and cheese sauce. Stir gently to coat every piece of pasta with that glorious mixture.
Step 6: Add Breadcrumb Topping
  1. Transfer the mac and cheese into a greased baking dish. Top with seasoned breadcrumbs for that crunch factor. It’ll give you the perfect contrast to the creamy pasta.
Step 7: Bake to Perfection
  1. Bake your dish in a preheated oven at 350°F (175°C) for about 25 minutes or until bubbly and golden on top. Let it cool slightly before serving.

Notes

  • Use Sweet Onions: Sweet onions caramelize beautifully, lending a natural sweetness to the dish.
  • Experiment with Cheeses: Don’t hesitate to mix cheeses! Fontina or cheddar can add their twist to the flavor.
  • Add Protein: Want to amp up the dish? Consider adding cooked bacon, chicken, or even chickpeas for extra heartiness.
  • Test Readiness: Make sure the pasta is al dente before mixing it with the sauce. It’ll cook further in the oven.
  • Make Ahead: This mac and cheese can be made in advance. Simply assemble it, cover, and refrigerate. Bake it just before serving!