01 - Combine milk and dried lavender in a small saucepan. Heat gently over low heat until just steaming, approximately 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 combining with sugar.
03 - Whisk powdered sugar in a mixing bowl. Gradually add 2.5 to 3 tablespoons of the cooled lavender milk, along with lemon juice if using. Continue whisking until completely smooth and pourable.
04 - Check glaze texture. If too thick, add more milk 1 teaspoon at a time. If too thin, incorporate additional powdered sugar until desired drizzling consistency is achieved.
05 - Drizzle or spread glaze evenly over cooled baked goods such as cakes, scones, or cookies. Let set for at least 10 minutes before serving to allow proper formation.