You just gotta make a game out of it.
For example challenge yourself to try to craft "pizza".
Can even try to do it in as least number of crafts as possible.
Point is, just crafting random things to see what it spits out is OK, but trying to use your own logic to combine things to get to an arbitrary solution you come up with is much more engaging, at least to me.
Challenge your friends to craft some specific "thing". Think of something you might think could be hard to craft to, and ask them to do the same and see who can get there first, or in the fewest steps.