Rinse the shrimp with water, Use a pair of scissors to cut off the mustache and legs. Set aside. Soak the crawfish in water and rinse a few times until the water becomes clear. Rinse and scrub the Manila clams. Drain and set aside.
Combine all the ingredients of the Seafood Seasoning in a bowl. Stir to mix well. Set aside.
Fill a large stockpot halfway with water and bring to a boil. Add the lemon halves, follow by the shrimp, crawfish, Manila clams and corns. Cover the stockpot and cook the seafood and corns until they turn red or cooked through, about 2 minutes. Drain the seafood and corns, discard the water and lemon. Set aside.
While the seafood is cooking, in a big skillet over medium heat, add the butter and stir in the minced garlic. Saute the garlic for 1 minute (not brown). Add the Seafood Seasoning and Louisiana hot sauce. Stir to mix the spicy butter sauce well. Turn off the heat.
Transfer the seafood and corn into the spicy sauce, stir to combine well. If you have a small skillet, mix the butter sauce and the seafood in two batches. Serve immediately.
Notes
Adapted from Cultural Chromatics. This is a Vietnamese-Cajun version of a seafood boil, which in my honest opinion, so much better than traditional seafood boil.
I skipped potatoes and smoked sausage. Feel free to add 8 oz. of baby potatoes and 8 oz. of sausage in the seafood boil.
You may also use crab legs, Dungeness crab and mussels in your seafood boil.