Making cakes and loaves method

Dough from kefir from Valentina Zurkan:

• 5 cups of flour so (before plastic dough) 
• 250 gr. milk 
• 250ml buttermilk 
• 2 eggs 
• 125 gr. melted butter 
• 25 gr. fresh yeast (or 1 tsp dried) 
• 6 table. tablespoons sugar 
• 1 teaspoon salt 
• 1 table. spoon of vegetable oil 
• ? about 1.3 kg of flour (up to obtain a plastic test)

Method of preparation:
Half a cup of water with a small amount of flour and sugar give rise yeast. Pour them into the warm milk mixture with yogurt, then add all the other ingredients and add fat to last.
Put the dough into heat for 1 hour. After the second test, it can rise to carve.
? Zdeliya bake at 180 degrees in the oven.