Do you know? When you do that nobody will answer your question until I do. There is no need to mention people to answer your question. We’ll answer as soon as we see it. In fact our members who actually runs a restaurant gives better answers for these kind of questions as they have better real life experience than me.
I wanted to demonstrate a simple case based on your explanation to let you understand the general idea. This is not the only way to implement that. Depending on your needs you can use separate portions and recipes or use order tags for each piece selection. There might be other solutions as well based on your preference or how you run your business. So you’ll change this sample for your needs. For example you can type “extra chips” instead of “extra wings” and map it to related inventory item inside recipe. You can find more info about order tags here.
Because you’re buying wings in grams but sell in pieces. If there is always certain number of wings in a specific package you can define them in pieces.
Think it like hamburger. We say there is 100gr meat in 1 Hamburger but in production it can’t be always exact 100gr. It may be 105 or 94.4. This is an average assumption and as I demonstrated you need to count your inventory periodically to update differences.