Step 1To poach the shrimp, fill a medium saucepan with water, add a generous pinch of salt and bring to a boil. Cook for 1 to 2 minutes. The shrimp will turn pink and opaque. Once done, drain and rinse with cold water to stop the cooking process. Note: Only if you are using very fresh shrimp from reliable sources, you can skip the poaching and let it "cook" in the lime juice (see tips in the post above).