Simmer the sweetened condensed milk and butter in a pan on low heat for about 15 to 20 minutes, stirring regularly, until thickened.

Remove from heat, but still leave it in the pan. Stir in 1/4 cup of coconut flakes, the let cool for a few minutes.

Prepare a glass bowl greased with butter, then once the mixture in the pan is cooled, add it to the buttered bowl.

Put the bowl in the refrigerator until the mixture is cold, at least 2 hours.

Once the mixture is cold, prepare a plate with coconut flakes and grease your hands with butter to form balls with the now cold mixture.

Form small balls then roll each ball in the prepared coconut flakes.

Refridgerate for later or enjoy on the spot :)