Speculoos chestnut parfait

Name: Speculoos chestnut parfait
Ingredients: 350 gram full fat cream; 60 gram confectioner´s sugar; 1 pinch fine salt or fleur de sel; 250 gram sweetened chestnut purée (crème de marrons, I used the one by Faugier); 2 eggs; 2 egg yolks; 6 crumbled speculoos cookies, + 2 or 3 for decoration; 6 small meringues (25 g), crumbled + 2 or 3 for decoration; 4 marrons glacés , chopped, for decoration - optional