Fill large pot about 3/4 full of water, place on an outdoor cooker and bring to a boil. **2 bottles of beer may be added if desired.
Turn to a med-high heat. Add Old Bay Seasoning and mix into water.
Gently place potatoes into pot - cook 10 minutes.
Add corn, sausage and onions - cook for 5 minutes.
Squeeze lemons and add to pot along with shrimp - cook for 3 to 4 minutes.
Drain liquid and dump boil onto a table covered in newspaper.
Have a little melted butter and horseradish sauce on hand....grab your favorite drink and dig in!