Put dried or fresh herbs or spices in the flavor booster in the drip tray. Thyme, coriander, basil, dill, curry and tarragon are some of the exciting herbs and spices that you can use. You can combine them with garlic, caraway or horseradish to enhance flavor without adding salt. We advise you to use 1/2 to 3 tsp. of dried herbs or spices. Use more if you use fresh herbs or spices.