To toast the Sichuan peppercorns, heat them in a small, dry skillet over medium until fragrant, about 2 minutes. Transfer to a bowl and let cool, then finely grind in a spice grinder. Strain through a fine mesh strainer to remove any fibrous pieces.
tablespoons Sichuan peppercorns, toasted and ground
teaspoons white sugar
teaspoon kosher salt