Corinne's Carrot Ginger Dressing

From my sister:

This is a good way to have really tasty dressing with no sugars or other mystery ingredients added.

2 tbsp mirin (Japanese cooking wine) or rice vinegar, or something else tasty
2 tbs miso paste
1 tbsp soy sauce
2 inch chunk of fresh ginger root
2 carrots
Black pepper to your personal taste

Blend them and then add water and blend again to get it to the consistency you want.

If you can't get miso paste or mirin, I think this still would be good with other savory things in it instead.
Maybe onions, oils, mustard or various herbs would be good. I just used what I had!