Japanese Ginger Salad Dressing

I love love love the ginger dressing at Japanese restaurants but none of the stores sell it here. This is the first failed attempt at making it. I will not put soy sauce in it in the future because it makes it visually unappealing to me. It taste exactly the same it just looks gross!

  Japanese Ginger Salad Dressing

4 tablespoons chopped carrots
4 tablespoons ginger chopped
2 garlic cloves minced
1/4 cup soy sauce
1/4 cup vegetable oil
1/2 cup water
1 Tb lemon juice
1 medium onion chopped (about 1/2 cup)
2 tablespoons tomato paste

Directions
Put all ingredients in a blender and blend
Stir and shake before each use