Dissolve honey, sugar and butter while stirring until the sugar is dissolved. Let cool down lukewarm while stirring occasionally.
Mix the cloves, allspice, cinnamon, 500g flour and walnuts in a bowl. Mix the potash and rum. Knead the honey, flour mixture, egg and potash into a firm dough. Scatter the remaining flour on top and cover with cling film. Let stand at room temperature for at least a week.
Knead the dough again vigorously and remove walnut-sized pieces from it. Roll into balls and place 4 cm apart on a baking sheet lined with baking paper. Bake at 175 ° C (gas level 2) for 12-15 minutes.
After baking: Mix the icing sugar and lemon juice into a smooth glaze. Put this in a freezer bag and cut off a small corner. Inject the pepper nuts in thin strips and let them dry.