This is almost 100% reliable...set up an artificial feeder, or if you don't have access to one, start a hand feeding program. Feed high protein fish pellets every day in low light, morning and evening. After a few weeks, bring her out, set her up beside the feeder one morning or evening, and she will likely catch more BG than she ever has before.
To make the odds even better, the day or two before bringing her out shut off the feeder or stop feeding.
I do this for my grandkids on occasion and they really get hooked on fishing....the problem, however is that it spoils them on regular fishing.