Whisk the yeast and water together in a mixing bowl. Add the butter, eggs and milk, and whisk well. Add 2 cups flour, sugar and salt. Whisk well until the mixture resembles a batter. Add more flour until it becomes a very thick batter, up to 2 cups. It should not form a ball. Cover the bowl with plastic wrap and allow the dough to rest for 1 hour. Preheat the oil to 360 degrees F. Using a spoon. drop the batter into the hot oil. Fry until golden brown, about 3 to 4 minutes. Remove and drain on paper towels. Place the fried dough in a paper bag and add the confectioners' sugar. Shake the bag a couple of times and serve warm.