Chewy doughnuts

My children being at home for the week, I have double the proportions and I got want25 donuts .For 4 people 350 g flour 15 cl warm milk 2 eggs 1 sachet baker's yeast 25 g caster sugar + decorate 1 salt 25 g soft butter cooking oil .In the tank of a robot, pour flour, yeast, sugar, salt. Add warm milk and knead just to mix. Add the eggs whole and beaten and mix again to obtain a homogeneous paste, add up to 50 g of flour if necessary. Stir in the butter and knead for at least 5 minutes until the dough is elastic. Cover the dough with a cloth and let rise in a warm place for at least 2 hours. Flatten the dough by hand and knead another minute to remove the bubbles. Roll out the dough on a lightly floured work surface to obtain a thickness of 5 mm. Cut rounds with a cookie cutter 5 cm in diameter and put them on a floured board, cover with the cloth and let rise another 45 minutes. Heat the oil in a fryer and when it is hot try a donut, it should not color too fast and will be cooked in 3 minutes. He must remain blond. When you have found the right temperature you can dive several donuts at a time and when they are cooked pass them immediately in powdered sugar. Serve hot again or garnish with jam or nutella using a pastry bag.