Espresso Brigadeiros

1 395g can sweetened condensed milk

1 teaspoon slightly salted butter, room temperature

1 teaspoon liquid glucose

4 tablespoons sifted cocoa powder

1 capsule Nespresso Cauca, freshly extracted and cooled

extra butter, room temperature, to grease plate and hands

Roughly ⅓ cup sifted cocoa powder, extra, in a shallow bowl

15 Mini baking cups