Chop almonds coarsely, dates and figs finely. Mix everything with lemon peel, juice and rum. Cover and leave to stand overnight.
Put the flour in a bowl. Warm the milk and 1 tablespoon of sugar lukewarm. Crumble yeast into it, dissolve. Pour the yeast milk into the flour and mix to the pre-dough. Cover and leave to rise in a warm place for about 20 minutes. Add 60 g sugar, 1 pinch of salt, stollen spice and 250 g butter in pieces to the pre-dough and knead everything into a smooth dough. Finally knead the fruit-almond mixture into the dough. Cover and leave to rise in a warm place for about 1 hour.
Grease eight preserving jars (each containing approx. 370 ml) and sprinkle with ground almonds. Knead the dough once more, divide it into 10 pieces and put them into the jars. Bake the Stollen in a preheated oven (electric oven: 200 °C/circulating air: 175 °C/gas: see manufacturer) for 40-45 minutes.
Melt 100 g butter. Brush the hot stollen immediately with butter and dust them thickly with icing sugar. Close the glasses immediately and let them cool down. Shelf life 2-3 weeks when stored in a cool and dry place.
If you have preserving jars in other sizes in stock (e.g. 290 ml content), you can also bake the stollen in them. The baking time is then reduced to approx. 35 minutes.
Dust the stollen with icing sugar immediately after buttering. This way it dissolves and moves in. Shortly before serving, sieve icing sugar over them again.