Sift in a bowl 3 tablespoons of flour, mix with yeast, add warm milk, stir until the dough aside. 
Melt the butter, pour it into a bowl, add sugar, salt, vanilla sugar, vegetable oil and egg, mix well, pour the mixture into a dough, gradually add the remaining sifted flour, knead not tight, and soft dough, cover, remove to heat for 30-40 minutes, the dough should for this time to come.