As many of the following as possible: cuisine, ingredients, type of dish (i.e. salad, meat, dessert), difficulty (of preparation), time (i.e. how long it takes to prepare it).
If I had to choose three, I would choose type, difficulty and time. Those three would be "must haves" for me, cuisine would be a "should have" and ingredients would be "nice to have".
Comments
I've got nothing to do with the OP, but what sort of filtering and categorization do you think you'd use? By cuisine? Ingredient?
As many of the following as possible: cuisine, ingredients, type of dish (i.e. salad, meat, dessert), difficulty (of preparation), time (i.e. how long it takes to prepare it).
If I had to choose three, I would choose type, difficulty and time. Those three would be "must haves" for me, cuisine would be a "should have" and ingredients would be "nice to have".