Everyone will give 3 cheers for this giant chocolate chip cookie. There's enough cookie for the whole team! Bake, decorate, transport and serve this crowd-pleasing treat all in the same pan. Match your icing colors to school colors.
Cookie serves 8-10.
Press cookie dough into pan. Bake and cool following recipe instructions.
Mark megaphone area with toothpick; ice smooth with spatula in white and outline with tip 6. Add tip 18 blue star border. Print tip 18 blue message. Add tip 18 pull-out star pom-poms in blue and white.