DB system

[Draeken]

Graph databases, such as Neo4J, could be suited for storing relation between recipe, sub-recipe, ingredients, ustensils.
https://neo4j.com/developer/data-modeling/
It is also possible to store in multiple DB (mongoDB & Neo4J): https://neo4j.com/developer/mongodb/

pros for graph oriented

• good performance for query like "what are the recipes that use this ingredient"

[Draeken]

(n:Recipe { directions: [{ instr: "dissoudreXdansYdansZ, argX: bol, argY: { code: "sel", quantity: 1}, argZ: "milk or water" }] })-[:requirement {factor: x} ]->(sb:Subrecipe/Product/Choice)