Zatarain's Seafood Boil

Ingredients

• 4 quarts water
• 1/2 cup Zatarain
• s Seasoned Crab Boil (liquid or bag)
• 1/4 cup salt
• 1 lb smoked sausage, sliced into ½-inch pieces
• 2 lbs large raw shrimp, peeled and deveined
• 2 lbs blue crabs, cleaned and halved (optional)
• 4 ears corn, husked and cut in half
• 1 lb baby red potatoes, halved
• 1 lemon, quartered (for serving)
• Fresh parsley, chopped (for garnish)
• 1 cup melted unsalted butter (optional)
• 1 tsp garlic powder (optional)
• 1 tsp lemon juice (optional)