Step 1

Add shortening into a large mixing bowl.

Step 2

Add in powdered sugar, in increments of ½ cup, while slowly adding in the milk, mixing until smooth.

Step 3

Add in vanilla and continue to mix until the frosting is thickened and glossy, this takes about 3-5 minutes.  Is the frosting too thick? Add  a tiny bit more milk.  Is the frosting too thin? Add a little bit more powdered sugar.

Step 4

Optional: Add in food coloring and mix until desired color, or transfer frosting to separate bowls for multiple colors.

Step 5

Spread frosting on cookies with a spatula or add to piping bags to pipe out onto cookies.  Enjoy!