This is my dad's favorite juice to make. My dad's lemon tree has been around since before I can remember and he used to always buy oranges in order to make this drink almost every night. I don't know why I waited until now to finally ask him for the recipe. But here it is! Sometimes my dad mixes it up by adding some lime juice. Update: Just a note to myself for future experiments. There is a restaurant here called Tucano's that makes Brazilian Lemonade (lime lemonade). I learned a while ago from a former waitress that the secret ingredient is sweetened condensed milk. So in the future I'll try adding some. (They also offer flavors like Raspberry, Guava, Mango, Pineapple and Strawberry Brazilian Lemonade, so you might want to try other flavors in place of the orange.)