1 cup all-purpose flour
1 heaping tsp. baking powder
1 cup ICE water (cold water won't work)
1/2 tsp. ground ginger
2 tsp. dry mustard
3 tbsp. soy sauce
1 1/2 cup apple juice, white wine, or chicken broth (taste will vary depending on which is used)
Mix all dipping sauce ingredients in a small saucepan, and heat at lowest setting on stove, stirring occasionally.
While dipping sauce is heating, mix the flour and baking powder in a small bowl. Mix the ice water and egg separately, then quickly add to the dry ingredients. Dredge however many vegetables you wish into batter, and then deep-fry until light golden. Drain well.
Serve with white rice and warm dipping sauce.