Devil Sauce Recipe (Chinese Fondue Dip)

🍅 Chili sauce is NOT Asian chili sauce

I got caught by this myself, so let me save you the trip. The chili sauce here is the red tomato based condiment sold right next to the ketchup, thicker and more seasoned than ketchup, sweet and vinegary. It is not sambal, not sriracha, not Thai sweet chili. The proof is in the ingredient list itself: there is already a line of heat further down. If chili sauce meant the Asian one, that line would be pointless.

🌶️ Dial the heat to who is eating

A quarter teaspoon of sriracha is my starting point and it is mild. Everyone can eat it, kids included. If your crowd likes it hot, push to half a teaspoon or more, but do it at the end, tasting as you go, never at the start. A sauce that is too hot cannot be walked back, while a sauce that is too mild is fixed in ten seconds.

🥄 The cornstarch earns its place, don’t skip it

Some versions skip both the cooking and the starch, just stirring ketchup into everything else. Mine is cooked, and the starch gives it a body plain ketchup never has: it coats instead of running. Two things to know. Whisk it into cold water first, never dump it straight into a hot sauce. And it only thickens with heat, so the boil does the work, not the fridge.

😈 Why “devil” sauce

The heat, plain and simple. It is the only explanation I could find and it is the most logical one. Don’t confuse it with sauce diable from classic French cooking, which is something else entirely: a hot brown sauce with white wine, shallot and pepper, served over poultry or grilled meat. Nearly the same name, two sauces with no ingredient in common.

🫙 Four to five days in the fridge, never the freezer

In an airtight container it keeps four to five days in the refrigerator. The acidity from the vinegar and tomato helps, but there is cooked onion and garlic in there, so I don’t push it further than that. And I don’t freeze it: the cornstarch breaks on thawing and you end up with a grainy sauce that lost its texture.

🍤 Not just for Chinese fondue

That is its home turf, but it comes out far more often than that at our place. On raclette, next to anything grilled, and with cold shrimp it beats cocktail sauce outright. Try it as a dip for homemade fries too, you will see.

📅 Make-ahead prep

This recipe is better made the day before, and not just to save time: the flavors develop in the cold and the sauce is genuinely better on day two. Make it a day ahead, cool it completely and keep it in a labeled sealed container in the fridge. On fondue night all you do is pull it out and pour it into a small bowl. Chop your onion and garlic the night before too if you are building several sauces at once, it is one less board to wash the evening of the party.

✅ What to serve with my devil sauce

It never goes out alone, it is part of a tray. For a proper Chinese fondue, build it alongside my other Chinese fondue sauces, and especially my Chinese fondue sauce with beer, which is its perfect opposite: soft and creamy where this one is sharp and hot. Outside the fondue context, it replaces the cocktail sauce on my crispy shrimp, and it teams up with my ketchup and mayonnaise dip on a platter of crudités or fries.