Ingredients

  • 4 tablespoons butter
  • 2 large onions, sliced very thin
  • 1 teaspoon ground thyme
  • 1 bay leaf
  • salt & freshly ground black pepper
  • 1 lb penne rigate
  • 2 tablespoons flour
  • 1 cup chicken stock
  • 1 cup milk
  • nutmeg, freshly grated
  • 3/4 lb gruyere cheese or 3/4 lb swiss cheese, shredded

Method

  • Heat a skillet over medium high heat and cook onions, thyme, and bay leaf in butter for 5 minutes; season with salt and pepper, lower heat and cook until onions are browned, about 10 to 15 minutes, transfer to a plate, discard bay leaf.
  • Meanwhile, bring a large pot of salted water to a boil, add pasta and cook until al dente; drain and return to pot.
  • Melt 2 tablespoons butter in the skillet over medium heat.
  • Whisk in flour for about a minute, then whisk in chicken stock and milk and bring to a boil.
  • Season with salt, pepper, nutmeg, lower heat and cook until thickened, about 5 minutes.
  • Stir in cheese to melt.
  • Combine onions and cheese sauce with pasta and toss.