1. **Activate the Yeast:** In a small bowl, combine warm water, a pinch of sugar, and yeast. Let it sit for about 10 minutes until frothy.

2. **Prepare the Dough:** In a large bowl, mix warm milk, sugar, butter, salt, cinnamon, nutmeg, and allspice. Stir until butter melts. Add the yeast mixture and egg; mix well. Gradually add flour, one cup at a time, until a soft dough forms.

3. **Knead:** On a lightly floured surface, knead the dough for about 10 minutes until smooth and elastic. Incorporate currants, apricots, and ginger during the last few minutes of kneading.

4. **First Rise:** Place the dough in a greased bowl, cover with a damp cloth, and let it rise in a warm place until doubled in size, about 1 hour.

5. **Shape the Buns:** Punch down the dough, divide it into 12 equal pieces, and shape into buns. Place them on a greased baking tray, leaving a small gap between each.

6. **Second Rise:** Cover the tray with a damp cloth and let the buns rise until doubled, about 30 minutes.

7. **Preheat Oven:** Preheat your oven to 375°F (190°C).

8. **Egg Wash:** Mix the egg yolk with 1 tablespoon of milk. Brush this mixture over the buns.

9. **Bake:** Bake for 20-25 minutes, or until golden brown.

10. **Glaze (Optional):** For a sweet finish, mix icing sugar with a bit of water to make a glaze. Drizzle over the buns once they’ve cooled slightly.