In a mixing Bowl: flour, sugar, milk powder, yeast, salt. Mix.
Add egg and warm milk. Mix and add the soft butter. Continue mixing until combined. Add flour if too sticky, add milk if too dry.

Transfer to the counter, knead the dough until smooth, about 5 minutes or more.
Put in the bowl and cover for an hour. Depending on your room temperature.

When the dough is ready, put back on the counter, flatten and roll out using a rolling pin into a rough rectangle. Roll the rectangle dough into a log.

Flatten and roll out again into a rectangle. Roll-in again into a log (twice process of a rectangle - roll-in - a log). Press the seam.
Put the rolled dough seam side down in greased loaf pan. Cover 30 minutes.