Once the buttercream is mixed, add the green and yellow food coloring. Mix in until you have a Grinch Green frosting. Attach a large star piping tip to a piping bag, and load with the green frosting.

Customizable: Adjust the food coloring to get the perfect Grinch green, or mix in fun extras like candy canes or cinnamon hearts. Holiday spirit : This bright treat will add a pop of color to your ...