You will need lukewarm milk and softened butter at room temperature; your first step is to prepare them.
Sift the flour into a large bowl, and measure out the sugar.
Let the yeast rise in the lukewarm milk, then add a tablespoon of sugar and a tablespoon of flour to it.Tip: Prepare your brioche with instant yeast and get the same outcome. There is no need to let instant yeast rise. If you choose instant yeast, you just have to combine all your ingredients, except the butter, with the flour. Add the remaining sugar, one whole egg and two egg yolks, salt, and risen yeast to the flour.
Knead your brioche dough for at least 10 minutes, until it is smooth.
And now, let’s see the key step to making your brioche dough heavenly soft: add the softened butter and prepare the dough by hand.You can add all the butter at once, or in smaller portions. At first, you will get a mishmash, so you may think you did something wrong — but that is not the case. Just keep going, and sooner or later you will get a perfect dough. Place your dough in a buttered bowl and let it rise in a warm place for an hour.
Your brioche dough is ready.