Patatje oorlog is a Dutch street food dish consisting of fries topped with a variety of condiments, including mayonnaise, finely chopped onions, and peanut-based satay-style sauce flavored with olek sambal, soy sauce, and chili. The dish is typically served in a paper cone and the fries are eaten by using your fingers.

Since patatje oorlog is a drinking dish, it is recommended to pair it with a cold beer on the side. The name of the dish means war fries or war chips, most probably referring to the fact that eating patatje oorlog is a messy affair, looking similar to a battlefield where chips, onions, and sauces are all over the place.