Creating boiled shrimp is a breeze when you follow these simple steps:

1. Prepare the Water: In a large pot, bring 4 cups of water to a boil.
2. Add Ingredients: Once boiling, add salt, lemon halves, smashed garlic, and Old Bay seasoning if using.
3. Add Shrimp: Carefully add the shrimp to the boiling water.
4. Cook Shrimp: Boil the shrimp for 2-3 minutes, or until they turn pink and opaque.
5. Check for Doneness: Ensure that the shrimp are cooked through; they should curl into a C shape.
6. Drain and Cool: Remove the pot from heat, drain the shrimp, and transfer them to a bowl of ice water to stop the cooking process.
7. Chill: Allow the shrimp to cool for about 5 minutes, then drain again.
8. Garnish: Sprinkle with fresh parsley before serving.

These steps will guide you in creating this incredible boiled shrimp effortlessly.