Ingredients
1/4 cup white-wine vinegar
2 tablespoons Dijon mustard
Coarse salt and ground pepper
1/2 cup olive oil
1 pound frisee, trimmed and roughly torn
1 bunch fresh chives, cut into 1-inch lengths
Preparation
In a blender (or screw-top jar), combine vinegar and mustard. Season with salt and pepper, and blend well to combine. Add oil, and blend until combined and thickened.
Place frisee and chives in a large serving bowl; toss with vinaigrette, and serve.