Place the milk, cream, melted butter, and brown sugar in a large mixing bowl.
Stir in the yeast and allow it to dissolve and proof for 5 to 10 minutes.
Stir in 2 cups of the flour until well-blended.
Stir in the eggs and egg yolk until combined.
Add the remaining flour, dried fruit, orange zest, candied ginger, cinnamon, nutmeg, and salt, and mix together until the dough gathers itself into a ball and pulls cleanly away from the sides of the bowl. (You may need more or less flour depending on the humidity. Use as much or as little is needed in order to achieve the proper consistency.)
Divide the dough into 12 equal portions and roll each one into a tight ball.
Place the unbaked buns in a lightly greased 9x13-inch baking dish and cover lightly with greased plastic wrap.
Allow the buns to rise in a warm place until doubled in size (approx. 1 hour).
Preheat the oven to 375 degrees F and brush the risen buns lightly with egg white for shine.
Bake the buns until puffy and golden brown (approx. 25 to 35 minutes).
Let cool, then pipe a cross over each bun with confectioner's icing.
To Make the Confectioner's Icing:
Stir the powdered sugar and milk together in a small bowl until smooth.
Video
Notes
This dough can be made in a stand mixer OR by hand.