Dragons Dogma Crafting System - Point in the right direction.

Been using UE for a good while and inventory systems I’ve made have always been drag and drop. Im trying to learn a new method to the same approach by creating a crafting system. Similar to minecraft, but more like dogma in the execution. The drag down menu and its entirety is easy to set up, but I’m having trouble figuring out where to go now. How would one create a list of Items that combine together and create a separate list of recipes. While also showing the player recipes they’ve already made or haven’t discovered?