Combine:

• 3/4 cup plain nonfat yogurt
• 3/4 cup sour cream
• 1/2 hot house cucumber, unpeeled, seeded and finely chopped
• 1/2 medium onion, finely chopped
  
• 1 t kosher salt
• 1 T Champagne vinegar
• Juice of 1 lemon
• 1 T olive oil
• 1 clove garlic, pressed
• 2 t fresh dill
• A few turns of black pepper

Refrigerate for 1 hour before serving. Taste for seasoning and serve.

Keeps well for about a week, covered and refrigerated.