01 - Combine milk and dried lavender in a small saucepan. Heat gently over low heat until just steaming, not boiling. Remove from heat and let steep for 5 minutes.
02 - Pour mixture through a fine-mesh strainer to remove lavender buds. Allow the strained milk to cool slightly before proceeding.
03 - Whisk powdered sugar with 2.5 to 3 tablespoons of lavender-infused milk in a mixing bowl. Add lemon juice if using. Whisk vigorously until completely smooth and pourable.
04 - Check glaze texture. Add more milk if too thick, or additional powdered sugar if too thin. Aim for a ribbon-like consistency that drizzles easily.
05 - Drizzle or spread glaze generously over cooled baked goods. Let set for at least 10 minutes before serving to allow proper firming.