Patatje Oorlog (a.k.a. war fries)

Pro tips

• Cook frozen fries until deeply golden and crispy; soggy fries won't support the toppings and will become mushy.
• Top the fries while still hot so the mayonnaise and peanut sauce warm slightly and adhere better.
• Apply mayo first, then peanut sauce in a drizzle pattern, then scatter onions on top for visual appeal and even distribution.
• Use a squeeze bottle or piping bag for sauces to control coverage and avoid over-saucing.

Substitutions

• Mayonnaise → Aioli (adds garlic depth)
• Peanut sauce → Satay sauce (more authentic Indonesian flavor)
• Raw onions → Crispy fried onions (different texture, less traditional)
• Frozen fries → Fresh-cut fries (requires extra cooking time)

Storage & make-ahead

Best served immediately. Leftover fries can be refrigerated up to 2 days; reheat in the oven at 375°F for 5–7 minutes to restore crispness, then re-top with fresh sauce and onions.

What does patatje oorlog mean?

Patatje oorlog translates to 'war fries' in Dutch. The name likely comes from the chaotic mix of toppings fighting for dominance on the plate.

Can I use fresh-cut fries instead of frozen?

Yes, fresh-cut fries work well. Cook them until golden and crispy, then top immediately while hot so the sauces stick.

What type of peanut sauce should I use?

Use a Dutch-style peanut sauce (satay sauce) or Indonesian sambal kacang. If unavailable, thin peanut butter with a little water, soy sauce, and garlic.

Should I use raw or fried onions?

Traditional patatje oorlog uses raw diced onions for crunch and bite. Fried onions work as a variation but aren't authentic.

Can I make this vegetarian or vegan?

Yes. Use vegan mayo and ensure your peanut sauce contains no meat products. Both are widely available and commonly used in this dish.