What is the largest quantity of "Manjimup Dried Apples" for an order?
the largest quantity of "Manjimup Dried Apples" refers to MAX(Quantity) where ProductName = 'Manjimup Dried Apples';
SELECT T2.Quantity FROM Products AS T1 INNER JOIN `Order Details` AS T2 ON T2.ProductID = T1.ProductID WHERE T1.ProductName = 'Manjimup Dried Apples' ORDER BY T2.Quantity DESC LIMIT 1