In food processor or blender, combine all ingredients and blend until smooth. Store in covered jar in refrigerator. Sauce will thicken up in the refrigerator, so allow it to come to room temperature before using on salads.
Per 1 Tbsp serving: 30 calories; 3 g protein; 2 g total fat (0 g sat. fat); 3 g total carbohydrates (1 g sugars, 0 g fiber); 42 mg sodium