Use this recipe as topping for Two-Tone Pink Raspberry Bavarians.
Beat egg whites a few times with a fork. Use tweezers to pick up a rose petal. Lightly brush the petal or raspberry with the egg whites. Sprinkle petal or raspberry with sugar. Transfer to a cooling rack to dry. Complete all the petals or raspberries. Store in an airtight container. The rose petals can be made 1 to 2 days ahead; raspberries should be used the same day.