Association rules: Find the recipe for a list of ingredients Assume I have big database of recipes. For each recipe I have a list of ingredients.
Now I want to find all association rules in the form of (ingredient₁, ingriedient₂, …) → recipe.

Is the Apriori algorithm suitable for my problem? As far as I am able to understand the Apriori algorithm is intended to find rules like X → Y where X and Y are subsets of the same superset. But in my case, X and Y are subsets of completely disjoint supersets.
Is it possible to fit the Apriori algorithm for my problem? Are there other algorithms that suit my problem better? Or am I completely on the wrong track? I would be very grateful for any tips or hints.
It doesn't seem like an association rule problem. It seems that what you suggest could be simply solved using set operations.

First, create mappings between 1 ingredient and all recipes containing it. Then, if you want to find all possible recipes based on a list of ingredients, it would be identical to the union of all of their "recipe sets".