This peanut butter cookie pizza starts with a giant soft & chewy peanut butter cookie. Then it's topped with fluffy, creamy peanut butter frosting & all your favorite peanut butter candies. It's a giant peanut butter cookie cake that's waiting for you!
In a large bowl beat together the butter, peanut butter & sugar using an electric mixer.
Beat in the egg and vanilla.
With the mixer on low speed slowly beat in the flour, cornstarch & baking soda.
Form the dough into a large ball, wrap in clingfilm and place in the fridge for at least 15 minutes or up to 24 hours.
When ready to bake, preheat the oven to 350F degrees and line a 12 inch round pizza pan with parchment paper.
With lightly floured hands, press the cookie dough into a round circle on the pizza pan. Do not press the cookie dough to the very edges of the pan - leave a perimeter of about ½ to 1 inch.
Bake for 12-15 minutes or until the top looks set.
Make the Frosting and Decorate
In a medium bowl beat together the butter and peanut butter until smooth.
Slowly beat in the powdered sugar and milk or cream 1 tablespoon at a time.
Frost the cooled cookie, then decorate with your favorite peanut butter candies.