Caramelized Onion Parmesan Spaghetti

Method

1. 01
   Step 1Caramelize the onions22m 30s

   Cook the onions in butter and olive oil over medium-low heat for 20–25 minutes, until deeply caramelized.

   OnionButterOlive oil
2. 02
   Step 2Add garlic and chili1 min

   Add the garlic and chili flakes and cook for another minute.

   GarlicChili flakes
3. 03
   Step 3Build the sauce3 min

   Pour in the chicken stock and let it reduce a little. Add the cream and simmer for 2–3 minutes.

   Chicken stockHeavy cream
4. 04
   Step 4Cook the spaghetti

   Cook the spaghetti until al dente, then add it straight to the sauce with Parmesan and a splash of pasta water.

   Note

   Reserve some pasta water before draining to help emulsify the sauce.

   SpaghettiParmesanPasta water
5. 05
   Step 5Toss and finish

   Toss until creamy. Finish with black pepper, lemon juice and fresh chives.

   Black pepperLemon juiceChives