Start by soaking the salted cod in cold water overnight.

Chop the onion and garlic, and halve the cherry tomatoes.

In a large pot, heat the olive oil over medium heat.

Add the chopped onion and garlic to the pot. Sauté until the onion becomes translucent, about 5 minutes.

Drain the soaked cod and add it to the pot. Stir gently to mix.

Add the halved cherry tomatoes and red pepper flakes if using.

Cover the pot and let it simmer for about 25 minutes.

Once cooked, remove the pot from heat and stir in the fresh parsley.