Strawberry Vinaigrette

It's berry city here at our house right now. I've chopped and frozen the strawberries. Great for smoothies, and for this vinaigrette, which I like to use on spinach salad with red onions, water chestnuts and blue cheese.

1 cup fresh or frozen strawberries, chopped
1/2 cup olive oil
3T white wine vinegar
1/2t sugar
1/4t salt
1/4t pepper
1/4t dried tarragon

Place all ingredients in blender pitcher and blend until smooth. Keeps in fridge for about a week, although I wouldn't really know-- it gets used up pretty fast.