Bring the water to the boil and gradually add the grits, stirring. Add salt. Cook uncovered, stirring often, about 15 minutes. Cover closely and continue cooking over low heat for 25 minutes, or until done.
Meanwhile, shell and devein the shrimp and put in a bowl. Set aside.
When the grits are cooked, remove from heat. Stir in 6 drops Tabasco sauce, t