Thank you! 😊 Nooch is a nickname for an ingredient called nutritional yeast (a deactivated form of yeast). Vegans and veggies use it a lot in cooking as it is really nutritious containing protein, dietary fibre, various minerals including zinc, magnesium and copper, as well as B vitamins- namely a high dose of vitamin B12 (which is the only nutrient a vegan or vegetarian can't get through a plant based diet). Fortuitously it has quite a cheesy flavour so is great to use in vegan macaroni, and pretty much everything else! 😀