Mix the soft butter with the condensed milk until you get a fine cream.
Add the flour, salt, and vanilla and mix.
You will get a slightly sticky composition, but not very soft.
Cover the dough with cling film and refrigerate for 1-2 hours.
Preheat the oven to medium heat.
Remove the dough from the refrigerator and break off walnut-sized pieces (or smaller).
Form the dough into balls and place them on a tray lined with baking paper.
Bake for 15-16 minutes, until lightly browned on the sides.
Remove and place on a cooling rack to cool.
For decoration, melt the chocolate in a bain marie with a teaspoon of vegetable oil.
When the icing is homogeneous, take it off the heat.
Dip the top of the cookies in the chocolate then put them aside, leaving space between them.
Sprinkle over the almond flakes or dried fruit and let the icing harden.
When the icing is hardened, transfer the cookies to an airtight tin, where they will keep for up to a month.
They are soft and delicious, very simple to make, and go great with a cup of coffee.