Start with a simple recipe that interests you. Look at the needed ingredients. The more you bake, the more your ingredient supply will build up. If it is chocolate desserts you are looking at, then you will definitely need chocolate. Unsweetened, Semi-sweetened squares, chocolate chips, cocoa, (does the recipe call for Dutch process?) Double acting baking powder, flour, (all purpose or cake flour?) Nuts, pecans, walnuts, hazel, etc. (make sure that those who will be eating your treasures are not allergic to nuts) Read the recipe carefully. Most baking calls for all purpose. I love to bake. Everyone loves dessert. Not everyone loves liver. Good luck with your new adventure.
Illegitimi non carborundum!
I don't want my last words to be, "I wish I had spent more time doing housework"