Place the cut broccoli in a large saucepan along with the broth, onion, butter, salt, curry powder and pepper.
Bring to a boil. Reduce heat and simmer, covered, for 8 to 12 minutes or until broccoli is just tender.
Place about 1½ to 2 cups of the mixture at a time into a blender container.
Cover and blend until smooth. Pour into bowl or another large pan.
Repeat with remaining mixture. BE CAREFUL. THE HOT LIQUID MAY SCALD YOU.
Stir in the lime juice.
Now you can either cover and refrigerate at least 4 hours to serve cold (great in warm weather), or you can go right ahead and serve it hot (great in cold weather).
Once ladled out, you can garnish with a thin slice of lemon, a small dollop or sour cream, and a sprinkling of chives.