Add the avocados, onion, garlic, yogurt, and cucumber to the bowl of your food processor.
Add the dill and Spike seasoning to taste.
Blend until smooth, adding the water a little at a time to achieve the consistency of heavy cream. Pour the soup into a covered container, and chill in the refrigerator for at least 2 hours
Remove the soup from the refrigerate, and pour into individual serving bowls
Top with a splash of olive oil, toasted pumpkin seeds, chopped chives, and some dill, or a simple sprig of parsley to finish