I've cooked the chicken and the carcass is in the fridge. I am going to use the carcass to make stock but can I then cool and use the stock in a recipe later?
Not sure about the 'only reheat once' rule here. The chicken carcass would only have been reheated once (to make the stock) but the would part of the stock technically have been reheated twice? (ie. cooked once as whole chicken, cooked twice as stock, cooked 3 times as stew using stock). Or maybe it doesn't count because it's just flavour from the carcass going into the stock, not actual ingredients?