Ingredients
1/2 cucumber, peeled and seeded
2 tablespoons sherry vinegar
2 tablespoons Dijon mustard
1 tablespoon chopped fresh tarragon
1/2 cup grapeseed oil
Coarse salt and freshly ground pepper
Preparation
Place cucumber, vinegar, mustard, and tarragon in a food processor, and process until smooth. With the machine running, drizzle in grapeseed oil; process until emulsified. Season with salt and pepper.