I need to make a lemon BC in the morning, but I ran out of lemon extract today I have fresh lemons, as well as a big bottle of lemon juice...can I make a lemon flavored BC with that??? Or do I have to make ANOTHER trip to the store ? If so, someone mind telling me how to make it work PLEASE!!

I would use the lemon juice from the lemon, strained. But the juice in the bottle would work too.