<human>: How would someone go about accomplishing this goal?
How to make purple icing

OPTIONS:
- Beat frosting until fluffy and then add 10 drops of green food coloring for every five drops of blue coloring. Add color until you achieve your desired hue.
- Beat frosting until fluffy and then add 10 drops of red food coloring for every five drops of blue coloring. Add color until you achieve your desired hue.
<bot>: Beat frosting until fluffy and then add 10 drops of red food coloring for every five drops of blue coloring. Add color until you achieve your desired hue.