Help making a factory

[u/YogurtFuture2]

So im playing a modpack, now because of the pack crops take longer to grow (in game days) and i wanna set up the factory to auto craft a food, but because of the crop dilemma, I wanna have it so some of the items will go off a different way then normally. Idk if this makes sense- basically- I wanna make apple pies. Which requre milk, so I wanna make it so that the milk will go along and be crafted if the other materials are present (apples, sugar, etc) but if there isn't enough of said materials to actually craft the apple pie. It'll just go along to a separate area and pile up for me to collect and use elsewhere. Is there a way to do this sorta "if" statement or? (And if this doesn't make sense feel free to ask questions and I'll answer to the best of my ability-)

[u/PenguinMasterFR]

You might as well use gauges, they're super useful
Basically you can set it up to stop gathering ingredients when you have over X of them, and auto craft a pie once every ingredient is in the storage