Soak the Raisins: Add hot apple juice or water over raisins. Cover and leave to soak until the juice comes to room temperature.
Prepare Yeast Mixture: In a medium bowl, add sugar and yeast to warm milk. Mix well and leave to proof for about 5 minutes.
Mix Dry Ingredients: To the bread flour, add cinnamon, nutmeg, salt, and brown sugar. Mix well.
Combine Wet Ingredients: Crack in one egg and add melted butter to the proved yeast and mix.
Mix Dough: Add the flour mixture, the wet ingredients, and fresh orange zest to a food processor and mix for 4 to 5 minutes or a stand mixer for 6 to 10 minutes.
First Proofing: Transfer the dough to a large bowl. Drain the raisins and add them to the dough. Work the raisins into the dough, cover up the bowl, and leave to proof in a warm place for 1 hour or until doubled in size.
Shape the Buns: Punch down the dough to remove trapped air. Transfer it to a lightly floured work surface. Divide the dough into 12 equal sizes and shape them into balls. Arrange the buns in a greased and dusted pan. Cover and let them rise for another 30 to 45 minutes.
Prepare Flour Paste: Combine flour and water in a small bowl to create a thick paste. Scoop the paste into a ziploc bag or a piping bag and cut off the tip.
Pipe the Crosses: Pipe the crust on top of the buns.
Bake: Bake at 350°F for 20 to 25 minutes until golden brown.
Prepare Glaze: Mix the sugar and water until the sugar is completely dissolved.
Glaze and Serve: Brush the surface of the buns with the glaze mixture while still very hot. Leave to cool before enjoying.