First, Add the Butter, Powdered Sugar, Corn Syrup, and Vanilla Extract to a stand mixer with the paddle attachment.
Cover bowl to avoid a powdered sugar explosion!
Next, start on low and add the white gel food coloring and salt to taste. I recommend about 1/4 teaspoon of salt!
Increase speed to medium-low as a delicious ball of buttercream forms.
Roll out between 2 sheets of parchment or wax paper. You can use cornstarch to prevent any sticking!
Lastly, you can start using immediately, store in an air-tight container in the refrigerator (up to a month), or store in the freezer (up to 3 months)! When you are ready to use, take out and thaw to room temperature and it's ready to go!