Q: Is there a trick to adding cornstarch to gravy? I try adding the cornstarch to a small amount of liquid and stir with a fork, then put it in with the simmering gravy and stir to thicken. It always ...

Both flour and cornstarch can be used to make a sauce thicker, but they have different compositions, so they can't always be used interchangeably. While cornstarch only contains starch, all-purpose ...