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Garlic and Onion Mac and Cheese

Print Recipe
Prep Time 20 minutes
Cook Time 40 minutes
Total Time 1 hour
Servings: 8 servings
Ingredients Method

Ingredients
  

  • 1 pound elbow macaroni
  • 1 whole head of garlic
  • 2 large yellow onions thinly sliced
  • 5 tablespoons butter divided
  • 1 tablespoon olive oil
  • 1/4 cup all-purpose flour
  • 3 1/2 cups whole milk
  • 2 cups shredded sharp white cheddar cheese
  • 2 cups shredded Gruyere cheese
  • 1 teaspoon salt
  • 1/2 teaspoon black pepper
  • 1/4 teaspoon nutmeg
  • 1/2 cup panko breadcrumbs

Method
 

  1. Preheat oven to 400°F, cut the top off the garlic head, drizzle with olive oil, wrap in foil and roast for 35 minutes until soft and golden.
  2. While garlic roasts, heat 1 tablespoon butter and olive oil in a large skillet and cook sliced onions over medium-low heat for 25-30 minutes, stirring occasionally, until deeply caramelized.
  3. Cook macaroni according to package directions until al dente, drain and set aside.
  4. Squeeze the roasted garlic cloves from their skins and mash into a paste.
  5. In a large pot, melt 4 tablespoons butter over medium heat, whisk in flour and cook for 2 minutes.
  6. Gradually whisk in milk and bring to a simmer, stirring until thickened, about 6 minutes.
  7. Remove from heat and stir in roasted garlic paste, cheddar, and Gruyere until melted, then add salt, pepper, and nutmeg.
  8. Fold in cooked macaroni and caramelized onions, transfer to a greased 9x13 baking dish, top with panko breadcrumbs, and bake at 350°F for 20 minutes until golden and bubbly.