Chop the desalted cod. Slice the two garlic cloves. Add a little olive oil to a small pan and, with the oil cold, add the garlic and fry very slowly for about 4 minutes to infuse the oil. Remove the garlic from the pan.

If there's too much oil, remove some, as we will lightly fry the cod. Stir constantly, and when the cod starts to flake, add plenty of cilantro. Stir a few times and turn off the heat. It should be slightly cooked. Set aside.

In a pan, melt the butter and remove from heat. Gradually add the flour, stirring to combine. Add a little milk, stirring to blend.

Return the pan to the heat and add the rest of the milk, stirring constantly. Then add salt, nutmeg, and black pepper. Cook over low heat.

Before finishing, add 1 tablespoon of flour to thicken the sauce. Stir well and adjust the salt. Blend the sauce until smooth and add water. It should not be too thick.

I recommend watching the video to easily follow all the steps of this recipe.