Mix dry milk and confectioners sugar in a medium bowl, until combined. Add sweetened condensed milk and stir with a spatula until smooth and firm. You may need to knead by hand to achieve a smooth texture.
Using your hands, roll into balls. Place them on a parchment-lined baking sheet.
Add a clove in the center of each papita de leche, if desired, and enjoy.
Store in a dry, sealed container like tupperware or a glass jar.