One of my favourites, a recipe from Austria:
1/2 lbs almonds, peeled and thinly sliced
1/2 lbs dates, deseeded
2-3 Tbsp rum
4 egg whites
1/2 lbs sugar
Chop the dates or cut them to fine stripes. Soak them in the rum.
Beat the egg whites very stiff, gradually adding the sugar.
Gently stir in the dates and almonds
Lien a baking tray with greese proof paper and with 2 spoons put little mounds (about walnut-size) of the mixture on it. Leave about an inch of space between them as they might run a little.
Bake at 200°C / 390°F
Leave to cool and then ice with dark chocolate. Keep them in an airtight container to keep them crispy.