In a small saucepan over medium-high heat, combine 2 1/4 cups water and 1/4 teaspoon PeachDish Salt. When liquid comes to a simmer, stir in the grits, stirring continuously as the liquid returns to a simmer. Reduce heat to medium-low, and cook 15-20 minutes. Using a whisk or flat-edged wooden spoon, stir along the bottom every 5 minutes or so to prevent the grits from scorching. When grits are creamy and tender, turn off the heat, cover the pot and let rest on the stove 10-15 minutes. Stir in butter, and season to taste with kosher salt and freshly ground black pepper.