Let the butter melt while heating the milk to body temperature (37 degrees Celsius (99 degrees Fahrenheit)).
Find a mixing bowl.
Pour the warm mixture in it.
Add yeast and sugar.
Stir.
Let the mixture sit for 5 to 10 minutes.
Add salt and stir.
Add flour to the mixture - 100 grams at a time while stirring vigorously.
Place the bowl in your mixer (or continue by hand).
Run the mixer on medium-high speed for 20 minutes until the dough is well kneaded.
Cover the bowl with a tea towel or plastic wrap.
Let the dough rest for 30 minutes.
Sprinkle flour on the table and place the dough on it.
Flatten the dough into a large rectangle.
First fold one end towards the middle, then the other. The ends should meet and be lightly pressed together.
Roll the dough into a log, from the top down towards the body.
Optionally, see the entire method here:
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Find a bread pan.
Line the pan with baking paper.
Place the log in it, seam side down.
Cover the bread with a cloth or tea towel.
Let the bread rise for 20 minutes.
Find a sharp knife.
Make two diagonal slashes on the surface.
Give the bread a generous sprinkle of flour. This way, we get a crispy crust that isn't burnt.
Place the dough in the cold oven.
Turn the oven on to 220 degrees Celsius (428 degrees Fahrenheit) conventional top/bottom heat.