Seafood Bisque

I love, love, love bisque.  And despite its fancy name, it's actually a very easy dish to make.  The flavors are also amazing.  I made this one using shrimp and bay scallops, but you can use pretty much any seafood you have, like lobster (if you can afford it), regular scallops, even clams.  Whatever you use, I'm know you'll enjoy this wonderful, creamy bisque. Enjoy!
-4 Tbs salted butter
-1/4 small onion, finely diced
-4 Tbs flour
-2 Tbs tomato paste
-2 cups hot chicken broth
-2 cups heavy cream
-2 cups milk
-16 oz bay scallops
-12 oz large shrimp, peeled, deveined, with tails removed
-2 tsp salt
In a large saucepan, melt the butter.  Add the onion and cook for about 5 minutes or until translucent.  Stir in the flour.  Mix until well blended.  Add the tomato paste and mix well.  Once well blended, add the broth, cream and milk.  Stir well, lower the heat, and simmer for about 45 minutes.  Add the seafood and cook for no longer than 10 minutes (otherwise it will become tough).  Season with the salt, give it a good stir, and serve immediately.  Enjoy!