In a small skillet,
saute the garlic, hot pepper, shallot, and mustard seed in the oil until the garlic and shallots
brown and the mustard seeds begin to pop (best over high heat, but don't let the oil burn). Add the tomato juice, tamari, white pepper and cumin. Lower heat and
simmer 5 minutes. In a small cup
mix 2 tsp cold water and the arrowroot until smooth.
Stir into sauce, stirring constantly. The sauce should thicken in about a minute or two. Add black pepper to taste. Remove from heat and stir into your favorite dish.