Finely chop half of a medium onion (about 1/2 cup) and mince the garlic.
Open the can of evaporated milk.
Rinse and drain the long-grain rice in a fine sieve or bowl. Tip: you can poke tiny holes and run water though the rice bag until clear.
(Optional) if adding, boil eggs and potatoes for 15-20 minutes.
Cook the Rice:
Warm 2 Tbsp. olive oil in a saucepan on medium heat. Add half the minced garlic and fry for a few seconds until brown.
Add the wet long-grain rice to the pan and stir to mix with the garlic.
Add 2 cups of chicken broth. Stir well.
Bring the rice to a boil then turn down the heat to low, cover, and simmer for 15-20 minutes.
Continue with the recipe while the rice cooks…
Puree the Sauce Base:
Pour the evaporated milk, 3-5 Tbsp. of aji amarillo (depending on your preferred spice level), and most of the walnuts into a blender. Puree until smooth.
Cook the Aji de Gallina:
Warm 1 Tbsp. olive oil in a large saucepan over medium. Add chopped onion and cook 3-5 minutes until translucent.
Add chicken and pureed sauce from step 3. Stir until heated.
Add the parmesan cheese and a little water, if needed, to keep the sauce from getting too thick.
Season with salt and pepper and simmer for another 5 minutes.
Check the Rice:
Turn off the heat, uncover, and fluff the rice with a fork.
Plate & Enjoy!
Serve garnished with olives and remaining walnuts.
(Optional) serve with sliced hard-boiled eggs and potatoes.
Enhance your experience with a Peruvian music playlist (takeoutkit.com/playlists).