Use Flour To Thicken. If that is enough reason to experiment with a new starch for you, go right ahead and check out how to use it. Mix 2 tbsp (30 ml) into the cold water.

If you need to know the what, why, and how of arrowroot flour, let us fill you in. A roux is a combination of flour and fat that’s been cooked for a little bit. Then add the flour mixture into the thin caramel sauce.