In a medium-sized mixing bowl, add the confectioners' sugar (powdered sugar).
Gradually pour in the fresh lemon juice, ½ tablespoon at a time. Whisk the mixture together until smooth.
If the glaze is too thick for your liking, add an additional teaspoon of lemon juice and mix well. Keep adding lemon juice in small increments until the glaze reaches your desired consistency. You want it to be smooth and pourable but not too runny.
If the glaze becomes too thin, you can thicken it by adding a bit more confectioners' sugar, a tablespoon at a time, and whisking until you achieve the desired thickness.
Taste the glaze and adjust the sweetness or lemon flavor by adding more sugar or lemon juice, if desired.
Once the lemon glaze has the perfect balance of sweetness and tanginess and the desired consistency, it's ready to use.
Drizzle the lemon glaze over cakes, cupcakes, muffins, scones, or any other baked goods of your choice.
Allow the glaze to set for a few minutes before serving.