If you love the rich, caramelized flavors of French onion soup and the creamy decadence of mac and cheese, this French Onion Mac & Cheese is your dream come true. This dish combines golden caramelized onions, gooey cheese, and tender pasta into the ultimate comfort food. Perfect for a cozy dinner, a potluck, or impressing guests at your next gathering.
Why You’ll Love This Recipe
- Rich and Decadent: Layers of creamy cheese sauce and sweet caramelized onions.
- A Unique Twist: Combines two comfort food classics into one.
- Ideal for any event, whether it’s a casual weeknight meal or a festive holiday feast..
How to Make French Onion Mac & Cheese
1. Caramelize the Onions
- Warm olive oil and butter in a skillet over medium heat.
- Add sliced onions, sugar, and salt. Stir well.
- Cook for 30-40 minutes, stirring occasionally, until the onions are golden and caramelized. Set aside.
2. Cook the Pasta
- Cook the pasta in salted water following the directions on the package.
- Drain and set aside.
3. Make the Cheese Sauce
- Melt the butter in a large skillet over medium heat. Add the flour and whisk, cooking for 1-2 minutes.
- Slowly add milk and broth, whisking continuously, until smooth.
- Add Dijon mustard, garlic powder, salt, and pepper. Stir well.
- Gradually add Gruyère and cheddar cheeses, stirring until melted and creamy.
4. Combine and Bake (Optional)
- Stir the cooked pasta and caramelized onions into the cheese sauce until evenly combined.
- For a baked option, pour the mixture into a greased baking dish. Top with panko breadcrumbs and bake at 375°F (190°C) for 15-20 minutes, until golden and bubbly.
Ingredients
For the Caramelized Onions:
- 2 large yellow onions, thinly sliced
- 2 tablespoons unsalted butter
- 1 tablespoon olive oil
- 1 teaspoon sugar
- 1/4 teaspoon salt
For the Mac & Cheese:
- 12 ounces elbow macaroni or cavatappi pasta
- 3 tablespoons unsalted butter
- 3 tablespoons all-purpose flour
- 2 cups whole milk
- 1 cup chicken or vegetable broth
- 2 cups shredded Gruyère cheese
- 1 cup shredded sharp cheddar cheese
- 1 teaspoon Dijon mustard
- 1/2 teaspoon garlic powder
- Salt and pepper, to taste
- 1/2 cup panko breadcrumbs (optional for topping)
Variations
- Meaty Twist: Add cooked bacon, pancetta, or shredded chicken for extra protein.
- Herbal Additions: Garnish with fresh thyme or parsley for added flavor.
- Gluten-Free Option: Use gluten-free pasta and flour.
- Vegan Version: Replace butter, milk, and cheese with plant-based alternatives.
Storage Instructions
Refrigerator:
- Allow the French Onion Mac & Cheese to cool completely before storing.
- Place it in an airtight container and store in the refrigerator for 3 to 4 days.
Freezer:
- To store for a longer period, transfer the cooled mac and cheese into a freezer-safe container.
- Freeze for up to 3 months. Thaw in the refrigerator overnight before reheating.
Reheating:
- Reheat in the oven at 350°F (175°C) until heated through, adding a splash of milk to maintain creaminess. For individual portions, microwave on medium power.
Recipe Details
Serving: 6 servings
Prep Time: 20 minutes
Cooking Time: 40 minutes
FAQ
1. Can I make this recipe ahead of time?
Yes, you can prepare the mac and cheese up to the baking step, cover it tightly, and refrigerate for up to 2 days. Bake just before serving.
2. Can I freeze French Onion Mac & Cheese?
Absolutely, place it in an airtight container and freeze for up to 3 months.. Thaw in the fridge overnight before reheating.
3. What cheese works best for this recipe?
Gruyère is ideal for its nutty flavor, but you can also use Swiss or Monterey Jack as substitutes.
4. How can I make the dish lighter?
Use reduced-fat cheese and milk, or swap half of the pasta for steamed cauliflower.
