This smash cake size Cookie Monster Birthday Cake is perfect for a Sesame Street Birthday Party.
I made this small Cookie Monster Cake as a decoration for the top of the cupcake stand at my daughter's Sesame Street Birthday Party. While I did not use it for this purpose, it would make a perfect Cookie Monster Smash Cake for a first birthday party!
Alternatively, the same design could be applied to a large cake to feed a crowd, although Cookie Monster might need a larger cookie for a bigger mouth!
I had the idea for this small Cookie Monster Cake saved from Pinterest, but it was just a photo with no link to a site, so I am unable to credit the original source.
Supplies
- 8-inch cake board
- aluminum foil
- two 5-inch or 6-inch cake layers
- 1 to 2 batches Easy Vanilla Buttercream
- black frosting
- blue food coloring gel
- disposable piping bag
- small grass tip, like Wilton #233
- plastic tip coupler, optional
- 1 chocolate chip cookie
Cake Assembly
For the base of the cake, I trimmed down an 8-inch cardboard cake circle to be about 7-inches in diameter then covered it in aluminum foil. When making the Chocolate Chip Cookie Cupcakes, I poured the extra batter from the cake mixes into two small, round dishes that measured approximately 5-inches in diameter.
Once the cakes were baked and cooled, I added Easy Vanilla Buttercream in between the cake layers and on the entire cake as a crumb coat.
Next, I added Cookie Monster's mouth using store bought black frosting. When I need a small amount of black when decorating, I typically purchase a small tube of black frosting or black decorating gel. It takes a lot of brown and black food coloring to achieve a true black color unless you're starting with dark chocolate frosting, so it's a big time saver for me to buy the black frosting already made.
After adding the mouth, I tinted Easy Vanilla Buttercream with blue food gel to get a nice bright blue. Then, I used a Wilton grass tip with a disposable pastry bag to make the fur. This is the same tip that I used to make grass on this Zoo Animal Cake.
It's essentially the same method to make the fur as you would to pipe stars in a section of cake: squeeze the frosting close to the surface of the cake then pull away as you release the pressure from the frosting bag.
You can see in this picture the imperfect job I did adding the fur. I don't think anyone but me noticed!
I piped big circles of untinted Easy Vanilla Buttercream for Cookie Monster's eyes, then added dots of purchased black frosting for his pupils. Since Cookie Monster is googly eyed, the pupils are in different spots on each eye.
The final step was breaking one of the chocolate chip cookies in half to stick in his mouth, and adding some crumbles of cookie underneath his mouth to represent the haphazard way Cookie Monster eats cookies!
Storage
Store the cake at room temperature or in the refrigerator. If chilled, allow the cake to come to room temperature before serving.
Gluten Free Option
Use your favorite gluten free cake recipe or gluten free cake mix. I like King Arthur Gluten Free Cake Mix.
📖 Recipe
Cookie Monster Cake
Equipment
- two 5-or 6-inch round pans
- disposable pastry bag
- plastic coupler
- grass piping tip
Ingredients
- 1 cake mix, prepared into batter (flavor of choice)
- 2 batches Easy Vanilla Buttercream (see note, or frosting of choice)
- bright blue food coloring gel
- store bought black frosting
- 1 chocolate chip cookie (small to medium in size, homemade or store bought)
Instructions
- Butter and flour two round 5- or 6-inch round pans, or use a baking spray like Pam for Baking.
- Prepare cake batter according to package directions and pour into the prepared pans until ⅔-full. Use the rest of the batter for cupcakes, such as the Chocolate Chip Cookie Cupcakes. Bake the small cakes according to package directions, reducing baking time to account for their smaller size.
- Once cakes are baked, cool for 10 minutes, then invert onto a cooling rack to remove from pans. Cool to room temperature.
- Place 1 cake layer on top of a cake stand or cardboard cake circle. Place strips of waxed paper underneath the bottom edges of the cake to protect the cake stand/circle from frosting during decorating. Frost the top of the cake with buttercream then add the second layer on top and cover completely with buttercream to serve as crumb coat.
- Use black frosting to pipe a filled half circle for Cookie Monster's mouth.
- Set aside a small portion of untinted buttercream that you will use to make Cookie Monster's eyes later. Tint the remaining buttercream with blue food coloring gel to achieve a nice bright blue color. Fill a disposable pastry bag fitted with a grass tip with the blue frosting. To pipe the fur, squeeze the frosting close to the surface of the cake then pull away as you release the pressure from the frosting bag. Repeat over the entire surface of the cake, taking care to go around Cookie Monster's mouth.
- Break a chocolate chip cookie in half to stick in his mouth, and add some crumbles of the other half of the cookie underneath his mouth to represent the haphazard way Cookie Monster eats cookies.
- Carefully remove waxed paper strips from underneath the cake and discard the paper. Store cake in refrigerator until several hours prior to serving. Allow cake to come to room temperature before eating.
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