Place flour in a large mixing bowl, form a well and add yeast into well. Pour in juice and water and let proof for 10-15 minutes. Add remaining ingredients and mix well until a soft dough forms.
Heat oil in a deep pot or frying pan. To see if the oil is hot enough, pinch off a small piece of dough and drop it into the pot. If the dough sizzles and rises to the surface, the oil is ready. Lower heat to medium and begin frying doughnuts. Pinch off walnut size pieces of dough and add to pot.
Fry until golden and remove using a slotted spoon onto a paper towel-lined plate, then immediately, while hot, toss with a lot of confectioners’ sugar.