For those of us across the pond (and in other parts of the world too) who can't easily find this neat condiment, and/or only need a little bit and don't want a huge bottle, for making traditional English dishes. The flour gives it substance and turmeric heats it up- it's a fab substitute for plain ground mustard when making macaroni and cheese sauce! Feel free to adjust upward or downward depending on how much you need- this is to make a spice rack sized bottle. In a fancy spice bottle, it makes a nice gift for the Anglophile in your life! 1 SERVING = 1 TSP, 12 TSP IN 4 OZ