Place the biscuits in a bag, seal it, and crush them well with a rolling pin.

Set aside 2 tablespoons of the crushed biscuits, then mix the rest with cocoa powder and knead with the sweetened condensed milk until you get a dough that's easy to shape.

Shape the mixture into balls, press them slightly, roll them in the reserved crushed biscuits, place them in small cupcake liners, and refrigerate until serving.

For the white balls, mix the sweetened condensed milk with shredded coconut. You can add more coconut until you get a dough that's easy to shape.

Shape into small balls, press them slightly, roll them in shredded coconut, place them in small cupcake liners, and refrigerate until serving.