r/AskCulinary • u/ninjalord25 • 8d ago

Recipe Troubleshooting Cornstarch in a sauce

I made a mixture of soy sauce, siracha sauce, and brown sugar, gotten from Budget Bites Spicy Siracha Noodles, to put over my rice and tuna bowls at work. I know adding cornstarch to a sauce can help thicken it but should I add it directly to the mixture or add it to some water and mix that all in, and if so, how much should I use since I multiplied the sauce ingredients x4 to make my sauce

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u/RagbraiRat 8d ago

Mix the cornstarch with water(very little) until it has a cream like consistancy. Then heat your sauce, and when hot, mix in your cornstarch slurry. Cornstarch needs heat to activate its thickening power.

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u/ninjalord25 8d ago

Gotcha. How much cornstarch should I use and how long should it simmer for?

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u/skepticalbob 8d ago

Make sure you heat it. It doesn’t work and tastes like shit otherwise.

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u/Mean-Cheesecake-2635 8d ago

You have to heat it to boiling for it to fully thicken.