In med. size saucepan cook the broccoli, broth, onion and spices until broccoli stems are tender. (poke with a fork to check).
Remove bay leaf. Puree this mixture in several small batches in your blender. Be careful! this stuff is hot. Only fill your blender half way so you don't hurt yourself and make a mess!
Put pureed mix in a bowl, rinse out saucepan and melt the butter on. med. heat. Once melted, add the flour and whisk together (you are making a rue, like when you make a white sauce). Then add the milk.
Once this mixture has thickened a bit, add the puree. Mix well and then serve and enjoy!