Seafood boil sauce in the style of Cajun butter sauce for seafood. Serve with crab boil, crawfish boil, seafood boil with potatoes and corn on the cob.
Finely dice the onion and mince the garlic. Set aside.
In a saucepan over medium-low heat melt half the butter and saute the onion until translucent, about 5 minutes.
Add the garlic, saute for another 1 to 2 minutes, until fragrant.
Add the beer while stiring, allow to simmer until the beer reduces by half. If necessary lower the heat a bit, do not boil the mixture.
Add the brown sugar, spices and lemon juice. Stir, then add the chicken broth.
Simmer until the chicken broth reduces by half and add the remaining butter, cut into pieces.
Once the butter is incorporated, give the sauce a good final stir and remove from the heat. Serve in small bowls alongside seafood boil spread or in individual ramekins for dipping peel'n'eat shrimp etc.
OPTIONAL: If you want a homogenous consistency either use a hand-held blender to smooth the sauce or pour the whole thing in a stand-up blender and give it a few pulses until satisfied. Be mindful of the fact that the sauce is hot.
Notes
*See the body of the post for style ideas. It is important that the beer is malt forward with minimal to no hops bitterness. A light lager is acceptable too but will not bring about as much flavor.The seasoning mix below is recommended in case you want to make the Blove sauce, see the post for explanation.