How Do You Make Bright Yellow Icing With Food Coloring?

How Do You Make Bright Yellow Icing With Food Coloring? How to Make Yellow Frosting. To make light yellow frosting, mix 1⁄2 container of vanilla frosting with 1/8 teaspoon of yellow gel. To make medium yellow frosting, mix 1⁄2 container of vanilla frosting with 1⁄4 teaspoon of yellow gel. To make yellow frosting, mix 1⁄2