For the almond cookies, grind the marzipan, sugar and almonds in a blitz chopper, so the marzipan does not stick. Then mix in the pinch of salt, the bitter almond oil and the egg whites.
When the mixture is well blended, use two spoons to place small heaps on baking sheets lined with baking paper. Preheat the oven to 160 degrees and bake the almond cookies for 12 to 15 minutes.