Crazy John's spicy mustard

Crazy John's spicy mustard

Ingredients:
mustard, prepared, yellow
wheat flour, white, all-purpose, unenriched
mustard, prepared, yellow
horseradish, prepared
spices, pepper, black
sugars, powdered
salt, table
water, bottled, generic

Directions:
Combine all ingredients EXCEPT water and mix well.
Then add the water, mix well and simmer for 2 minutes.
Remove from heat and allow to cool to room temperature.
Transfer to an air-tight jar and store sealed, in the refrigerator.