Q&A for How to Thicken Stew

No. With a homemade cheese sauce, use corn flour. Only use half a teaspoon at a time as a little bit goes a long way!

Probably all-purpose. There's no reason for it to rise, so any old flour should do just fine.

Its not ideal. The flour won't cook; it could turn clumpy and might make your stew not taste so good. The easiest way to cope with a thin stew is to just serve the stewed, solid ingredients and use a little of the liquid as a sauce.

You could, depending on the type of stew you are making.