In small bowl, beat Glaze ingredients with spoon until smooth and spreadable. If too stiff to spread, add additional lemon juice, 1/2 teaspoon at a time. Dip top of each cookie into glaze, letting excess drip off. Place cookie right side up on cooling rack placed over baking sheet or waxed paper. Let stand about 30 minutes or until set. Store covered in airtight container at room temperature.