This easy lemon sauce is sweet, tangy, and perfectly balanced. Made with simple pantry ingredients, it comes together in minutes and is perfect for chicken, fish, shrimp, or pork.
In a bowl, combine the water, lemon juice, sugar, cornstarch, and salt. Stir until the sugar and cornstarch are fully dissolved and smooth.
Pour the mixture into a small saucepan and heat over medium heat, stirring constantly, until the sauce thickens and becomes glossy. Add sliced lemon if using before serving or using in a dish.