Preheat a skillet over medium heat then pour 2 tablespoons of extra virgin olive oil into it.
Once it is hot, stir in chopped onion and sauté until wilted and aromatic. Remove from heat.
Preheat an oven to 350°F and line a baking tray with aluminum foil. Set aside.
Cut the fish fillet into cubes then place in a food processor.
Add sautéed onion, ¼ cup chives, egg, and a tablespoon of coconut flour to the food processor then process until tender.
Shape the mixture then arrange on the prepared baking tray.
Place the baking tray in the oven and bake the fish balls for approximately 20 minutes or until the fish balls are set.
In the meantime, preheat a saucepan over medium heat then pour the remaining extra virgin olive oil into it.
Once it is hot, stir in minced garlic to the saucepan and sauté until wilted and aromatic.
Combine the remaining coconut flour into coconut milk then stir until incorporated.
Pour into the saucepan then bring to a simmer.
Once it is done, remove from heat and drizzle lemon juice on top. Stir well.
When the fish balls are cooked, place in a serving dish.
Drizzle the sauce over the fish balls then serve.
Enjoy warm.