How To make Fresh Sorrel Mayonnaise

1/2 c Very fresh plain yogurt
1/2 c Low fat mayonnaise
1/2 lb Fresh sorrel; stems removed
1 tb Soy sauce
1 Garlic clove; finely chopped
1 ds Cayenne
In a food processor or blender, blend all ingredients together well. Yield: 1 1/2 cups. The author writes: "A wonderful sauce for fresh grilled salmon, halibut or sea bass." From 1993 "Shepherd's Garden Seeds Catalog," pg. 52.