In a small bowl, whisk together the milk, egg and yeast.
In a separate large mixing bowl, combine the flour, salt, sugar and ground cardamom.
Make a small well in the flour, pour in the milk mixture and stir together until it forms a rough dough.
Knead the dough until smooth and glossy, then let it prove until almost doubled in size.
Roll out the dough and prepare the butter filling.
Spread the butter filling on the dough, fold and roll it out again.
Slice the dough, shape the buns, and let them prove for 30 minutes.
Bake the buns in a hot oven until golden brown, then brush with the chosen glaze.
