There is nothing like a dinner at Benihana’s for both tasty food, and having your dinner prepared while you watch.    You can enjoy their spicy Chinese style mustard any of of the week, we will show you how to make this!
3 Tbsp. powdered mustard
2 Tbsp. hot water
1/2 cup soy sauce or tamari sauce
2 Tbsp. sesame [...]

This is easy to make at home.  The mustard will lose heat over time.  So be sure to eat quickly if you want to enjoy the heat this packs.
1/4 C. boiling water
1/4 C. dry mustard (Colemans)
1/2 tsp. salt
2 tsp. vegetable oil
Using a whisk, stir boiling water into mustard until smooth.  Add the salt and oil [...]