French fries with curry sauce. If you like curry as much as I do, and if you are sure to put potatoes in curry dishes as I am, then this combination should be irresistible. Delicious, recommended. French fries with mustard. Dutch people like to use mustard sauce with all fried things, hot dogs, fried chicken, fried squid and so on. When they feel a little tired in the second half, they can fight for another 5 years with mustard sauce. It is natural to match French fries. By the way, mustard sauce is not spicy. If you want to buy it, remember to buy the kind of smooth paste.