Proof the Yeast: Mix warm milk, sugar, and yeast in a bowl. Let it sit until it gets very foamy.
Mix the Dough: Add butter, eggs, and spices to the yeast mix. Slowly stir in the flour until a dough forms.
Knead the Dough: Use a mixer to knead for five minutes. The dough should be smooth and slightly sticky.
First Rise: Place dough in a greased bowl. Cover it and let it double in size. This takes one hour.
Add Fruit: Fold in the currants and orange zest. Make sure they are spread evenly in the dough.
Shape the Buns: Divide the dough into twelve equal pieces. Roll them into smooth balls with your hands.
Second Rise: Place balls on a baking sheet. Cover them again for forty minutes until they look puffy.
Bake the Buns: Put them in a hot oven at 375 degrees. Bake for twenty minutes until they are golden brown.
Make the Glaze: Mix powdered sugar with a little lemon juice. It should be thick enough to pipe.
Add the Crosses: Let the buns cool a little bit. Pipe a white cross on top of every bun.