Choose the texture before thickening a sauce
A sauce can coat a spoon, cling to noodles or pool beneath vegetables.
A sauce can coat a spoon, cling to noodles or pool beneath vegetables. Choosing its job first makes the thickening decision much easier to judge.
Put a little sauce on the actual food rather than judging only from the saucepan. A mixture that looks thin in a deep pot may spread just right over rice. One that coats a spoon heavily can become cumbersome on a plate. Allow the sample to cool slightly, since the eating temperature is more useful than a rolling boil for this comparison.
Choose one adjustment
Reduction removes liquid and also concentrates seasoning. A starch mixture changes texture without asking you to evaporate as much water, but follow the starch package instructions for mixing and cooking. Blended vegetables or beans can add body and their own flavour. These methods are not interchangeable fixes.
Make a small adjustment, stir it through and sample again before adding more. Keep some unthickened liquid available when possible. If the sauce has become too heavy, loosen a small portion first to learn how much liquid it needs. Write down the method only after seeing how it behaves with the complete meal. The useful note is “light coating for roasted vegetables,” not simply “make thicker.”