This biscuit salami is part of the family of chocolate salamis found in Europe and South America. It’s important to to keep some of the biscuits’ crunchy texture. There are two ways to do this: First, don’t let the syrup thicken too much — it should remain rather thin. And second, only use enough syrup to make the roll hold together — too much will make the biscuits soggy.
150 g (about 1½ cups) walnut halves, lightly toasted and roughly chopped
Zest of one orange
200 ml (¾ cup plus 1 tablespoon) water or milk
100 g (125 ml or ½ cup) sugar
18 g (45 ml or 3 tablespoons) cocoa powder (not hot chocolate mix)
150 g (185 ml or ¾ cup) butter
5 ml (1 teaspoon) vanilla extract
Crush the biscuits to create a rubble of pea-sized and smaller pieces; this should yield about .1.25 to 1.5 litres. Mix the biscuit crumbs with the walnuts and orange zest and set aside.
Without letting it come to a boil, gently heat the water or milk, sugar and cocoa for about five minutes. Stir in the butter and continue stirring until you have a thin syrup, about five minutes. Take the pan off the stove and stir in the vanilla. Let sit until it’s cool enough to handle, but not cold.
Add three-quarters of the syrup to the biscuit mixture and mix well. Add more syrup as needed until it is firm enough to be formed into the shape of a rolling pin. Divide the mixture in two.
Tear off a couple large pieces of plastic wrap and overlap the long edges by a couple of centimetres so you have one large sheet.
Wet your hands with water and place one portion of the mixture on the plastic, so it forms a 30 cm (12”) log, along the long side of the sheet. Cover with plastic wrap and firmly roll it back and forth and press in the ends. As you compact it, the length will shrink and the girth will plump.
Twist the ends of the plastic to cover the ends and keep the filling from drying out.
Repeat above steps with the second portion of the mixture.
Cool in the fridge for at least two hours (or overnight, if you wish).
When ready to serve, place the salami on a cutting board and carefully remove the plastic wrap. Slice with a bread knife or another serrated blade into one-centimetre (½”) discs.