There is an abandoned citrus grove behind my house. I picked some fruit and brought it home. I think the trees have reverted to their rootstock and are producing sour, very seedy fruit. I juiced four and froze it while exploring recipes. So far I have marinade for chicken or pork and salad dressing (substitute for vinegar). Any other thoughts? There are navel type oranges and a small orange with loose skin like a clementine.