Melt butter in a medium size pot on medium heat.
Stir in flour until fully incorporated.
Slowly stir in the chicken broth and Longfin Lager until smooth. Bring to a boil, stirring frequently to avoid burning. Cook for about 2-3 minutes at a boil and then turndown to low heat.
Add carrots, celery, onions, bay leaf, cayenne, salt and tomatoe paste. Keep on low and heat and cook for 30 minutes, until vegetable are tender. You must stir frquently to avoid burning.
Add the light cream, lobster or crab meat and shrimp. Cook for another 15 minutes on low, keep stirring.
Remove tails from shrimp if tails are on.
Remove bay leaf and serve