In a large steamer pot, combine 2 cups of water, 1/4 cup of apple cider vinegar, and 12 oz. of light beer. Place the pot over high heat and bring the mixture to a boil.

Once the pot is boiling, carefully place the steamer basket inside the pot. Arrange 1 lb. of peeled and deveined shrimp in a single layer within the basket. Sprinkle 2 tablespoons of Old Bay seasoning generously over the shrimp.

Cover the steamer pot with a lid, reducing the heat slightly to maintain a steady boil. Steam the shrimp for 5-6 minutes, or until they turn bright pink and opaque.

Once the shrimp are cooked, carefully remove the steamer basket from the pot. Transfer the shrimp to a serving platter and serve immediately with cocktail sauce and extra Old Bay seasoning.