01 - Combine milk and dried lavender in a small saucepan. Heat gently over low heat until just steaming, about 2 minutes. Remove from heat and let steep for 5 minutes to develop floral flavor.
02 - Pour the lavender-infused milk through a fine-mesh strainer to remove all buds. Allow the strained milk to cool slightly before incorporating into the glaze base.
03 - Whisk powdered sugar with 2.5 to 3 tablespoons of the cooled lavender milk in a mixing bowl. Add lemon juice if using for brightness. Continue whisking until completely smooth and pourable.
04 - Check glaze thickness. Add small amounts of remaining lavender milk to thin if needed, or incorporate additional powdered sugar to thicken until desired spreading consistency is achieved.
05 - Drizzle or spread the finished glaze over completely cooled baked goods such as cakes, scones, or cookies. Let the glaze set for at least 10 minutes before serving to achieve proper coating.