This really works, but be sure to use a blender, not a food processor.

Ingredients:

• 3 Tab white wine vinegar
• 1 tsp tarragon (crumbled)
• 1 tsp chives (or green onion greens) chopped
• 2 eggs
• 2 Tab lemon juice
• 1 c butter, melted, hot

Directions:

1. Simmer vinegar, tarragon, chives until reduced to about 2 teaspoons.
2. Place in blender with eggs and lemon juice.
3. Blend for a few seconds.
4. With blender turned on, slowly pour in the butter.

Serves: 1 1/2 cups

Source:  Sunset Cook Book for Entertaining