I'm gonna have to say that learning how to make my grandma's signatures would be most important. She even said her self that someone has to learn how to do these, and I personally am honored to learn her recipes. These recipes are what get's my family money for fundraising and that's pretty important! Not only that but one of signatures witch would be her custard pie my grandpa said she should write please eat responsibly. By this I mean one person ate the whole pie and didn't give their children or beloved one any piece.
So far I am taking it step by step and learning the basics of cooking with my grandma. We made cake doughnuts that don't have yeast and we made funnel cake that was crunchy. But were taking baby steps until I reach her awesome signatures! So all i'm doing is going over to her house when I can and she can and learning more and more about baking. Step by step, day by day and recipe after recipe is how I'm gonna learn how to make her signatures.