Homemade Japanese Steak House Ginger Salad Dressing - cooking recipe

Ingredients

2 ounces gingerroot (about 1/2 cup)
1 medium onion, cut into quarters
3 cups vegetable oil
1 cup vinegar (I use red wine vinegar)
1 3/4 cups soy sauce
1 1/2 tablespoons tomato paste
1/4 lemon, juiced
1 garlic clove
1 3/4 cups water

Preparation

Soak the ginger root in cold water for a few minutes to make it easier to remove the outer skin. Carefully peel the skin off with a sharp knife and cut into quarters.
Combine all the ingredients in a food processor with a steel blade and blend until smooth. (Again, divide the ingredients in half and blend each half separately, if food processor is not big enough for entire recipe.).
Combine in a lidded jar that will hold entire recipe, our separate in smaller jars.
Refigerate.
Skake jar or stir before serving.