In a large pan, boil orange juice, milk, 5 tablespoons olive oil, orange peel, and salt. With the help of a wooden spoon, stir in the flour till the dough becomes solid. One by one add all 4 eggs and stir continuously. Pour olive oil in a skillet and heat it to 375ºF. Make 1 inch pieces of the dough and carefully fry them in the hot oil. Take them out once they are golden brown and drain extra oil on paper towels. Sprinkle some powdered sugar on top and serve them hot.