Step 1

In a mixer, add the butter and the lemon juice.

Step 2

Cream together on low speed until they are completely combined.

Step 3

Add the powdered sugar one cup at a time and continue to beat on medium speed until the frosting is creamy.

Step 4

Add the lemon zest and 1 small drop of yellow food coloring (if desired)

Step 5

Continue to mix.

Step 6

If the frosting is too runny, add 1/2 cup additional powdered sugar. Keep adding powdered sugar 1/2 cup at a time until you have the frosting at the desired consistency.