1: In a bowl, combine bread flour, sugar, yeast, and salt.
2: Add milk, egg yolks, and melted butter to the dry ingredients and knead until smooth.
3: Let the dough rise until doubled in size.
4: For the filling, mix cream cheese, sugar, all-purpose flour, milk, lemon zest, and a pinch of salt until smooth.
5: Roll out the dough, cut into pieces, and place a spoonful of filling on each piece.
6: Fold the dough over the filling and shape into buns.
7: Let the buns rise again on a baking sheet.
8: Bake at 180°C for about 25 minutes or until golden brown.
