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Author:
Tracy Nawara
We have all seen those cookie cakes in the display window at the mall. It’s usually a large pizza-sized cookie with “Happy Birthday” written in frosting. Serving a slice looks like a giant slice of pizza, but tastes like a large, sweet, chewy cookie.
A cookie cake is the best way to celebrate a milestone, so why not make one at home? By making this cookie cake yourself, you can make a gluten-free version that will knock your guest’s socks off! Plus, by making it at home, you can add whatever ingredients you like.
For this particular pizza cookie, gluten-free oats are used to make the flour. That gives this cookie pizza an oatmeal cookie-like texture and flavor. To play off of the oatmeal flavor, you could add raisins or chocolate chips for a classic combination. This recipe uses chocolate chips since they are more crowd-friendly. You could also add nuts to this cookie cake for texture and crunch.
Another flavor that is great in this cookie cake is peanut butter. Peanut butter gives this cookie cake a luxurious mouthfeel, allowing the cookie to be both chewy and soft when biting into it. Not only is peanut butter inside of the cookie cake, but it is inside the frosting on top, too!
Gluten-free recipes usually use a blend of flours or xanthan gum to have optimal texture comparable to using wheat flour. In this recipe, the only flour ingredient is oats. That means this recipe is perfect for people who are just beginning their gluten-free journey, or for people making a treat for a loved one who is gluten-free. Not many fancy gluten-free ingredients are needed, so this recipe is easy and inexpensive.
This cake is as simple as making cookie batter, a task most people have done at least once in their lives. If you are not a baker, do not fret! This cookie cake is much simpler than making a real cake with frosting.
If you wanted to, you could even make this a layer cake! Double or triple the cookie ingredients to make 2 or 3 layers, sandwiching frosting in-between the layers. You will also need to double or triple the frosting recipe as well, but it is worth it. Rarely do people serve cookie layer cakes at their birthday parties!
Preheat the oven to 350 degrees F.
Begin by blending your oat flour. Blending the flour yourself will give a really nice final texture to the cookie cake. Add about 3 cups of gluten-free oats into the blender and blend on high for 2 minutes until the oats a finely milled. Measure out 2 cups of blended oats and add to a bowl. Mix with the baking soda and set aside.
In a separate bowl, cream together the butter, peanut butter, and sugars. Add the egg and vanilla and combine fully. You can use a hand mixer for ease.
Stir in the homemade oat flour and chocolate chips until combined. Do not overmix.
Using a pizza pan or a 9-inch springform pan, add the dough to resemble one large cookie, leaving a ½-inch border around the outside of the pan. Shape the dough with your fingers so it is even all around.
Bake 18-20 minutes or until the cookie is set.
Allow the cookie cake to cool completely. In the meantime, make the frosting.
In a bowl, add the butter and peanut butter. Cream together with a hand mixer or whisk. Add the powdered sugar and milk 1 tablespoon at a time until the frosting resembles your desired consistency.
Once the cookie cake is cooled completely, frost with your frosting and serve.
